Bob and Johnny have a leaf raking business. They charge $4 for each bag of leaves they rake. On Monday they raked 5 bags of leaves. On Tuesday they raked 3 bags of leaves. On Wednesday, they counted their money and found they had $68 for all three days. How many bags of leaves did they rake on Wednesday?
Combining Monday and Tuesday, they raked 5 + 3 = <T>add(5, 3)=8 bags of leaves.
They earned 8 * $4 = $<T>multiply(8, 4)=32 for the first two days.
O for Wednesday's work they earned $68 - $32 = $<T>subtract(68, 32)=36
Thus, they raked $36 / $4 = <T>divide(36, 4)=9.0 bags of leaves on Wednesday.
