Write an equation to describe the variation. Use k for the constant of variation.w varies directly with a
A. a = 
B. a = kw
C. w = 
D. w = ka
Answer: D
Mathematics
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Solve the problem.Frank's Furniture employees earned the following amounts last week:
What was the mean amount earned by an employee last week? Round your answer to the nearest cent.
A. $444.30 B. $388.76 C. $338.90 D. $345.57
Mathematics
Replace the question mark with the appropriate symbol < or >.22 ? 0
A. < B. >
Mathematics
Sketch the graph of the function.f(x) = 
A. 
B. 
C. 
D. 
Mathematics
Translate the problem to a system of equations; then solve using the elimination method.Roberto invested some money at an APR of 8 percent, and then invested $3000 more than twice this amount at an APR of 9 percent. His total annual income from the two investments was $3650. How much was invested at 9 percent?
A. $26,000 B. $29,000 C. $9000 D. $2900
Mathematics