SOLUTION: please help me solve this problem asap The cost of a long-distance telephone call is 80 cents for the first three minutes and 20 cents for each additional minute. a. Write a

Question 42010: please help me solve this problem asap
The cost of a long-distance telephone call is 80 cents for the first three minutes and 20 cents for each additional minute.
a. Write a formula for the total cost,T, of a phone call lasting m minutes.
b. Using the formula,find the total cost of an 8-minute call?
when you solve this can you make sure you explain how you get the answer because i really need to know how to do it when i take my test
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
m is the total minutes
(m - 3) is the minutes excluding the first three minutes
T = .80 + .20(m - 3)
With m = 8
T = .80 + .20(8 - 3)
T = .80 + 1.00
T = $1.80
answer
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