Answer:
4 years
Step-by-step explanation:
800 x 0.04 = 32
128 ÷ 32 = 4
...
4% = 0.04 because of 4 ÷ 100
137 cars per hour
Since there were 685 cars all together you have to do 685 divided by 5 so that you can get your answer of 137 cars per hour
