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haley pays a monthly fee of $20 for her cell phone and then pays 5 cents per minute used. the total cost of haley’s monthly cell phone bill can be expressed by the function c(m)

Respuesta :

SmallishHelper
1) Find the rate of growth.

0.05

Add x to represent the minute

0.05x

2) Find the starting value


20

3) Make the equation

c(m) = 0.05x + 20

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