Question 1 of 25

1.0/ 1.0 Points 
// Simplify: 5(x + 2) – (x + 1)
A.4x – 9 

B.4x + 4 

C.4x + 9 

D.4x + 11 

//


Part 2 of 25 – Unit 2 Q2 
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Question 2 of 25

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// The simple interest (I) on a certain amount of money (p) that is invested at a specified interest rate (r) for a specific period of time (t) can be found by the formula I = prt. Find the interest on a principal of $700 invested at 6% yearly for 3 years.
A.$11,340.00 

B.$126.00 

C.$113.40 

D.$12,600 

//


Part 3 of 25 – Unit 2 Q3 
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Question 3 of 25

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// The heat energy from electricity is given by the formula E=0.238 I^{2} R t. Find E when I = 15 amps, R = 11 ohms, and t = 100 s. Round answer to the nearest hundredth.
A.58,905.00 

B.3,927.00 

C.53,014.50 

D.64,795.50 

//


Part 4 of 25 – Unit 2 Q5 
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Question 4 of 25

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// Solve: –3 + x = 7
A.{–4} 

B.{4} 

C.{–10} 

D.{10} 

//


Part 5 of 25 – U2 Q6 
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Question 5 of 25

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// Solve for x:
//


Part 6 of 25 – Unit 2 Q7 
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Question 6 of 25

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// Use the formula F = ma to solve. Find the acceleration for a force F = 810 newtons and a mass of 45 kg.
A.2025 m/s<sup>2</sup> 

B.18 m/s^{2} 

C.324 m/s^{2} 

D.810 m/s^{2} 

//


Part 7 of 25 – Unit 2 Q8 
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Question 7 of 25

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// Steve earned scores of 78 and 99 on his first two exams. What will his average grade be if he gets a 93 on his third exam?
//


Part 8 of 25 – Unit 2 Q9 
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Question 8 of 25

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// A basketball team played 62 games and won 10 more games than it lost. Find the number of games the team won.
A.26 games 

B.16 games 

C.31 games 

D.36 games 

//


Part 9 of 25 – Unit 2 Q10 
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Question 9 of 25

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// A person sold their house for $170,000 and made a profit of 21%. How much did they pay for their home?
A.$154,545.45 

B.$205,700.00 

C.$126,446.28 

D.$140,495.87 

//


Part 10 of 25 – Unit 2 Q12 
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Question 10 of 25

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// Under certain conditions, the pressure of gas varies inversely with its volume. If a gas with a volume of 175 cubic inches has 23 pounds of pressure, find the amount of pressure 115 cubic inches of gas is under.
A.1/35 lb 

B.23 lb 

C.1/23 lb 

D.35 lb 

//


Part 11 of 25 – Unit 2 Q13 
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Question 11 of 25

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// The time to complete a project is inversely proportional to the number of people who are working on the project. A class project can be completed by 5 students in 28 days. In order to finish the project in 7 days, how many more students should the group add?
A.30 more students 

B.15 more students 

C.20 more students 

D.35 more students 

//


Part 12 of 25 – Unit 2 Q14 
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Question 12 of 25

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// Which point is graphed below?
A.(–4, 5) 

B.(–5, 4) 

C.(4, 3) 

D.(–4, –3) 

//


Part 13 of 25 – Unit 2 Q15 
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Question 13 of 25

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// Find the slope of the line passing through the points (–1, 9) and (5, 2).
A.6/7 

B. 7/6 

C. 6/7 

D.7/6 

//


Part 14 of 25 – Unit 2 Q17 
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Question 14 of 25

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// Find the coordinates of the xintercept. –x – 4y = –4
A.(4, 0) 

B.(0, 4) 

C.(0, 1) 

D.(1, 0) 

//


Part 15 of 25 – Unit 2 Q18 
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Question 15 of 25

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// Write the equation in slopeintercept form:
6x = y + 12
A.y = 6x + 12 

B. 

C.y = 6x – 12 

D. 

//


Part 16 of 25 – Unit 2 Q19 
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Question 16 of 25

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// Find the yintercept. –x – 3y = 9
A.(0, –9) 

B.(–9, 0) 

C.(0, –3) 

D.(–3, 0) 

//


Part 17 of 25 – Unit 2 Q20 
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Question 17 of 25

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// Graph x = 3.
A.A1 (Each gridline represents 1 unit.) 

B.A1 (Each gridline represents 1 unit.) 

C.A1 (Each gridline represents 1 unit.) 

D.A1 (Each gridline represents 1 unit.) 

//


Part 18 of 25 – Unit 2 Q21 
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Question 18 of 25

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// Find the slope. –5x – 6y = –29
A.6/5 

B.5/6 

C.5/6 

D.6/5 

//


Part 19 of 25 – Unit 2 Q22 
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Question 19 of 25

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// A newspaper advertisement costs $5.50 per week to run the ad plus a setup charge of $45.00. Find the cost of running the ad for 6 weeks.
A.$303.00 

B.$270.00 

C.$33.00 

D.$78.00 

//


Part 20 of 25 – Unit 2 Q23 
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Question 20 of 25

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// The number of women who use a computer at work in Elbonia can be modeled by the equation y = 5,873x + 13,077, where x is the number of years from now. How many Elbonian women will be using a computer at work 10 years from now if this trend continues?
A.18,950 women 

B.189,500 women 

C.71,807 women 

D.136,643 women 

//


Part 21 of 25 – Unit 2 Q25 
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Question 21 of 25

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Part 22 of 25 – Unit 2 Q26 
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Question 22 of 25

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// Solve the system by substitution.
A.(–1, 8) 

B.(1, –8) 

C.(8, –1) 

D.(–8, 1) 

//


Part 23 of 25 – Unit 2 Q27 
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Question 23 of 25

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// Solve the system by addition/subtraction.
A.(8, –4) 

B.(–4, 8) 

C.(–8, 4) 

D.(4, –8) 

//


Part 24 of 25 – Unit 2 Q28 
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Question 24 of 25

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// Solve the following system:
What is the value of x?
//


Part 25 of 25 – Unit 2 Q30 
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Question 25 of 25

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// Bob invested $13,000, part at 9% and part at 8%. If the total interest at the end of the year is $1,160, how much did he invest at 9% ?
A.$1,000 

B.$13,000 

C.$12,000 

D.$11,000 

//

