Answer :
let's take the miles as x to reach the same cost.
130 + 0.2x = 80 + 0.3x
50 = 0.1x
x = 500 miles
so when you are travelling more than 500 miles company A is better than company B
130 + 0.2x = 80 + 0.3x
50 = 0.1x
x = 500 miles
so when you are travelling more than 500 miles company A is better than company B