Answer: the monthly rate for the cell phone plan is $45
Step-by-step explanation:
Let m represent the monthly rate that the cellphone company charges.
A cell phone company charges $60 for a cell phone and a monthly rate to use the phone. This means that the total charge for using the phone for x months would be
60 + xm
If Regina will pay $1140 for a 24 month cell phone plan, it means that
1140 = 60 + 24m
24m = 1140 - 60
24m = 1080
m = 1080/24 = 45
