To find out how much more Company A charges than Company B for x miles, we need to first calculate the total cost for each company for x miles, and then subtract the cost of Company B from the cost of Company A.
The cost for Company A for x miles is:
Total cost = $70.50 + 0.17x
The cost for Company B for x miles is:
Total cost = $45.50 + 0.09x
To find out how much more Company A charges than Company B, we can subtract the cost of Company B from the cost of Company A:
Difference in cost = ($70.50 + 0.17x) - ($45.50 + 0.09x)
Difference in cost = $25 + 0.08x
Therefore, Company A charges $25 + 0.08x more than Company B for x miles.