Final answer:
For x miles, Company B charges $40 + 0.05x dollars more than Company A.
Step-by-step explanation:
In order to find out how much more Company B charges for x miles than Company A, we need to calculate the total cost for each company and then find the difference between them.
For Company A, the total cost is $30.50 + ($0.09 * x) = $30.50 + 0.09x dollars.
For Company B, the total cost is $70.50 + ($0.14 * x) = $70.50 + 0.14x dollars.
To find the difference, we subtract the total cost for Company A from the total cost for Company B:
(70.50 + 0.14x) - (30.50 + 0.09x)
= $40 + 0.05x dollars.
Therefore, for x miles, Company B charges $40 + 0.05x dollars more than Company A.