Question

Reggie's cellular phone service

costs him $25 per month plus
$0.09 per minute. How many
minutes can Reggie use the
phone in one month, and keep
his bill under $40? .

Answer 1

166.6 minutes

Explanation:

0.09x+25<40

0.09x<40-25

0.09x<15

x<15/0.09

x<166.6