PLEASE HELP ASAP A cell phone carrier charges a fixed monthly fee plus a constant rate for each minute used. Part 1. In January, the total cost for 325 minutes was $ 77.5 while in February, the total cost for 400 minutes was $ 85 . The constant charge for each minute used is:

A) 0.12
B) 0.11
C) 0.1

Part 2. The fixed montly fee charged by the carrier is;

fee = $