Answer:
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Step-by-step explanation:
7 shirts
290/40 = 7.25
But since you can't have 7.25 shirts, it's just 7.
d
It would be $390 for the 4 hours and the cleaning fees. And the slope would be -13 if you are going from 12 to 7 but would be 13 if you are going from 7 to 12...