Phone call charges

Question

For a long-distance person-to-person telephone call, a telephone company charges $0.36 for the first minute, $0.26 for each additional minute, and a $2.28 service charge. If the cost of a call is $4.20, how long did the person talk?

Answer 1

4.20 - (2.28+.36 +.26) = 1.30 (This accounts for only 2 minutes of talk time).

Now, divide 1.30 by .26 = 5 minutes (remaining minutes used)

Add 5 + 2 = Answer: 7 minutes.

Answer 2

4.20 = 2.28 + 0.36 + 0.26m

Can you solve for m and answer?

Remember to add the first minute to the total.