Question

Erinn's basic cell phone plan charges $54.99 for service plus $0.24 per minute beyond the including 500 minutes in the plan. how much will it cost erin if she used her cell phone for 690 minutes in one month?

Answer 1

We can first find how many minutes were not incleded in the plan:

690-500
=190

She used phone call for 190 minutes beyond the included 500 minutes, and the extra fee it would cost is:

190 × 0.24
=$45.6

We can then find the total cost:

45.6+ 54.99
=$100.59

Therefore the answer is $100.59.

Alternatively:
54.99+190×0.24
=54.99+45.6
=$100.59

Hope it helps!