The cost of a can ride, y, based on the number of miles driven, x, is represented by

y = 0.80x + 2.50

Part A: How expensive is a 7-mile ride?

Part B: How many miles did you travel if the ride cost $13.70?

Step-by-step explanation:

y = 0.80x + 2.50

a 7 mile ride ... x = 7

y = 0.80 (7) + 2.50

y = 5.60 + 2.50

y = 8.10 <== = the 7 mile ride cost $ 8.10

the ride cost 13.70 ... y = 13.70

13.70 = 0.80x + 2.50

13.70 - 2.50 = 0.80x

11.2 = 0.80x

11.2 / 0.80 = x

14 = x <== = u travel 14 miles