The following table shows the cost of a shirt for each week during a sale. What is the rate of change for this situation?

Week Price

1 $32.50

2 $30.00

3 $27.50

4 $25.00

A) $7.50 per week

B) - $7.50 per week

C) - $2.50 per week

D) $2.50 per week

Adding = Sum What are those kind of words for subtract divide and multiply? I am not for sure what they are called.

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A company's sales decreased by 8% this year, to $9015. What were their sales last year? (Round your answer to the nearest penny.) My answer was 9,736.2, but the correct answer was 9798.91. Could someone explain how did they get to 9798.91?

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