Solve the problem.How much work is done by a 120-lb woman as she walks up 12 steps, each with a 
-ft rise?
A. 360 ft ? lb
B. 1440 ft ? lb
C. 2880 ft ? lb
D. 720 ft ? lb
Answer: D
Mathematics
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i - 
j + 
k
A. 
B. 
C. 
D. 
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Evaluate the expression.15 - (-10)
A. -5 B. 5 C. -25 D. 25
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Find the distance between the pair of points. Give an exact answer.(-5, 4) and (-8, 8)
A. 25 units B. 10 units C. 5 units D. 6 units
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Use the graph to determine the value of he function.f(-3)
A. 2 B. -2 C. 0 D. -8
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