Question

A cell phone company charges $40 per month plus a $35 activation fee write an expression for the total cost for m months then evaluate your expression for 10 months of service

Answer 1

750

Explanation:

40+35(10)=750

Answer 2

For this case, the first thing we must do is define a variable.

We have then:

• m: number of months.

We write the expression that models the problem:

`f (m) = 40m + 35`

Then, for 10 months we have:

`m = 10`

Substituting values:

`f (10) = 40 (10) + 35\\f (10) = 400 + 35\\f (10) = 435`

Answer:

an expression for the total cost for m months is:

`f (m) = 40m + 35`

for 10 months of service:

`f (10) = 435`