Question

a pre paid cell phone company charges 14.55 as a monthly access fee and 0.14 per minute of calling time.Express the monthly cost C as a function of x, the number of minutes use.__________what will the monthly cost be if you make 333 minutes of call this month?$________

Answer 1

We are asked to find a function of the cost given the monthly fee and the costs per minute.

Let x be the number of minutes used, we need to multiply the number of minutes by the rate of cost per minute and add that to the monthly fee, like this

$c(x)=0.14x+14.55$

That gives us the function of the cost.