Answer:
Rate for 100 miles = $ 6 / miles
Rate for 250 miles = $ 3.3 / miles
Explanation:
Given that cost for covering 100 miles by flight is $600.
As rate is the cost of covering unit distance (in miles).
So, the rate to cover 100 miles by flight = $ 600/ 100 miles = $ 6 /miles.
Similarly, the cost of covering 250 miles by flight is $825.
So, the rate to cover 250 miles by flight = $ 825/ 250 miles = $ 3.3 /miles.