Expression miles driven in range with cost
I have a Math problem below really stretches beyond my linear math algebraic equation (y=mx +c) understanding of 2 sets of specific number data. The problem, given a range of data verses another set of specific number. Please help if you have the solution. Many thanks and appreciate.
Cassidy rented a truck to move 120 miles from Ithaca to Attica. The table shows the cost for renting the truck based on the number of miles driven.
Miles driven Cost ($)
Write an expression to determine the cost of renting the truck for m miles.