The Small World long distance phone company charges 55cents for the first minute of a long distance call and 23cents for each additional minute.

1. How much would a 10- minute long-distance call cost?

2. If a call costs $4.55. how long did the call last?

3. Write an equation for the total cost, C, of an m-minute long-distance call.



A five minute would cost 55 cents for the first minute and 23 cents per minute for the rremaining 4 minutes for a total cost of

55 + 4 23 = 55 + 92 = 147 or $1.47