Question 64616

Let the  number of bananas received be = N
Number of bananas free = 10
==> number of bananas to be charged = N-10
Cost of N-10 bananas at $0.10 each = (N-10)* 0.10
Cost for the service per month = $12
Therefore the cost C for receiving N bananas is given by,

C = 12 + (N-10)*(0.10)


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