4) Dan had 199 dollars to spend on 7 books. After

buying them he had 17 dollars. How much did each book cost?

The answer is that each book costs 26 dollars

Step-by-step explanation:

First we subtract 199 dollar from 7 = 182

Then we divide 182 dollars to the seven book in order to find a unit = 182/7=26

To prove this answer multiply 26 dollars than 7 books and see if the outcome is 182. Then subtract 199 from 182 and see if you got 17.