I have eight coupons that are all worth -.25
This is most likely a proportional relationship because DOUG regularly mows his neighbors yard
According to the rule of 72, that rate will be 72/33 ≈ 2.18 percent.
Since the expression 7h + 1.50d can be used to find the total earnings. We just need to substitute the given data to the expression to solve the problem.
7(15) + 1.50(8)
105 + 12 = 117
Colton's total earnings after working 15 hours and making 8 deliveries is 117 dollars.
