49+.55x is the equation. So however many miles gets plugged in for x.
The best answer to this question is A because the graph of a polynomial can have up to 1 less turning point than its highest degree. For example, a 10th degree polynomial can have 9 or less turning points.
Add $35 + $55 and you get 90, multiply 90 by 5 and you get $450. so the answer is A. hope this helped.