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

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