Answer:
A. You earn $20 for washing 4 cars.
B.You washed 9 cars.
Explanation:
Answer A:
First you have to divide 35 by 7 to figure out how much money you get per car.
You'd get $5
Then you have to multiply by 4 to figure out how much money you get for 4 cars.
Answer: $20
Answer B.
You just have to divide 45 by 5 wich would get you 9.
Answer: 9 Cars