Answer:
Paul: 0.40m + 68.00
Harper: 0.65m + 23.00
Explanation:
M here represents the amount of miles. So, if you add it to the equation, you get the total cost. For example if I wanted to hire Paul for 2 miles, it would be 0.40(2) + 68.00
0.40(2) = 0.80
0.80 + 68 = 68.80
It would be $68.80 for 2 miles.