Question

A cell phone company charges a $15 activation fee, and then $30 per month. If Ian has the plan for 24 months, what is his total cost?

Evaluate the expression $15 + 24($30) to find the total cost.

Answer 1

The total cost that Ian spent is $735.

Answer 2

The total cost is $735.

Explanation:

It is given that a cell phone company charges a $15 activation fee, and then $30 per month.

Fixed changes = $15

Variable changed = $30 per month

Let x be the number of month. So the total cost is defined as

`T(x)=15+30x`

We need to find the total cost for 24 months.

Substitute x=24 in the above equation.

`T(24)=15+30(24)`

`T(24)=15+720`

`T(24)=735`

Therefore, the total cost is $735.