Question 274016
Assume 100 minutes for both  
Fast Comm = $15.20 + 100(.07/min)=$7.00 for a total of $22.20
Alltel = $9.50 + 100(.09/min)=$9.00 for a total of $18.50

Alltel is less costly at 100 minutes used, but assume 500 minutes and Fast communications is less costly

Fast Comm = $15.20 + 500(.07/min)=$35.00 for a total of $50.20
Alltel = $9.50 + 500(.09/min)=$45.00 for a total of $54.20

The better deal depends on minutes used.