A cell phone company is offering 2 different monthly plans. Each plan charges a monthly fee pulls an additional cost per gigabyte of data used. Plan A: $50 fee plus $7.50 per gigabyte of data
Plan B: $60 fee plus $5.00 per gigabyte of data
a.
Write an expression to represent the cost of Plan A.
b.
Write an expression to represent the cost of Plan B.
C.
Which plan would be the least expensive for someone who uses 6 gigabytes of data