At TelePower Plus, long-distance phone calls to China cost $0.59 for the first minute and $0.25 for each additional minute, plus an additional roaming charge of $2.50. If the total charge of a call to Beijing was $11.84, how many minutes did the call last?

Answer 1

11.84 - 2.50 = 9.34

9.34 - 0.59 = 8.75

8.75 / 0.25 = 35

35 + 1 = 36 minutes