Part A. If Ravi drives the rental car 150 miles, which option costs less?
Answer: Option B
How much less does it cost than the other?
Answer: $30
D = 150 miles
Option A = $80
Option B = $50
Option A - Option B = $80 - $50 = $30
Part B. What number of miles driven do the two options cost the same?
Answer: 75 miles
If Ravi drives less than this distance, which option costs less?
Answer: Option A