Question

A cell phone company charges $4 per GB beyond 20GB in a month. The monthly plan is $59.99, and the bill for January is $75.99. How many GB were used in that month?

Answer 1

Explanation:

75.99-59.99=16

$16 worth of GB used for that month

which means 16/4=4 GB extra were used that month beyond the 20 GB

so total GB usage for that month is 24 GB

Answer 2

24GB

Explanation:

75.99-59.99=16 This is how much extra money was paid.

16/4=4 Divide this by the cost per GB.

20+4=24GB Add the 20GB included in the plan.