Perform the exponentiation.(-5)3
A. 15
B. 125
C. -15
D. -125
Answer: D
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (-2)2(-2)3
A. -64
B. -32
C. 
D. 
Mathematics
Solve the problem. Round rates to the nearest tenth of a percent and dollar amounts to the nearest dollar when necessary.An office supply store sells a computer disk for $87.95. If the cost is $60.67, find the percent of markup on cost and the equivalent percent of markup on selling price.
A. 69%, 145% B. 45%, 69% C. 45%, 31% D. 69%, 31%
Mathematics
Which method should be used to solve the system? Explain your answer, including a description of the first step.x2 + y2 =818x - 5y =6
What will be an ideal response?
Mathematics
Find the expression that is equivalent to the given rational expression.- 
A. 
B. 
C. 
D. 
Mathematics