Question 290646
These are common word problems here.
The details are given and you have to decide which plan is better after so many minutes of use.
c(p)=p
c(m)=mx+b
p is monthly cost of prepaid plan
b is monthly cost of monthly plan
x is number of minutes per month
m is cost per minute
c(m) is cost monthly with minutes

c(p) is cost of monthly plan