A taxi charges a flat fee of 4.00 plus 2.25 per mile. How much will the taxi driver earn if he takes one passenger 4.8 miles and another passenger 7.3 miles?

Write an equation.

T = Total money made

M = miles driven

4 + 2.25m

T = 7.3*2.25 + 4 + 2.25*4.8 + 4

T = 8 + 7.3*2.25 + 2.25 * 4.8

4.8 * 2.25 = 10.8

7.3 * 2.25 = 16.425

T = 16.425 + 8 + 10.8

T = 35.225

So, the total amount of money he made was $35.25.