a. Let m = be the number of miles driven
Cost of NYC rentals: 525 + 0.21m
Cost of Metro Trucks: 585 + 0.13m
b. 525 + 0.21m = 850
0.21m = 325
M = 1,548 miles
c. Initial cost for NYC rentals = $525
Initial cost for Metro Trucks = $585
d. NYC rentals: 525 + 0.21 (500) = $630
Metro Trucks rentals: 585 + 0.13 (500) = $650
e. 525 + 0.21m = 585 + 0.13m
0.21m – 0.13m = 585 – 525
0.08m = 60
m = 750 miles