Please help

Question

Kevin decides to buy a cell phone. At at&t, Kevin pays a $60 activation fee and $39 monthly fee. At Verizon, Kevin pays no activation fee and $54 monthly fee. Writ an equation that can help you decide which cell phone company to join.

Answer 1

At AT&T, you pay $60 fee once plus $39 every month. At Verizon, you pay $0 fee and $54 every month.

 

If x = number of months,

 

AT&T: f(x) = 60 + 39x

Verizon: g(x) = 0 + 54x = 54x