SAT Math Practice Question #39283 - SATify | SATify
#39283
applications
functions
medium
60 sec
Calculator OK
The function C(m)=0.15m+25 gives the total cost C(m), in dollars, of a phone plan that includes m minutes of talk time. If a customer's total bill for a month was $62.50, how many minutes of talk time did they use?
• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-). • Fractions must be in lowest terms. • Mixed numbers must be converted to improper fractions.
