Find the commission earned or the rate of commission. Round money answers to the nearest cent if necessary.Sales: $570 Commission: $31.35

A. 0.55%
B. 6.5%
C. 7.5%
D. 5.5%


Answer: D

Mathematics

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Solve.A cube has a surface area of 6x2 + 108x + 486. Find the length of a side.

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Evaluate the expression without using a calculator.-2/3

A. 512
B. -4
C.
D. 4

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Use the line graph to solve the problem.What was the percent of increase in hours needed to prepare from Test 1 to Test 2?

A. 33% B. 100% C. 150% D. 50%

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Determine if the following ordered pair satisfies the system of linear equations.;8x = 6 - yx - 10y = -7

A. Yes B. No

Mathematics