8) Keith had eighty - one dollars to spend on eight books. After buying them he had seventeen dollars.

How much did each book cost?

Equation

Answer:

You would do 81-17=64 because they had eighty one dollars in the beginning and 17 dollars left. then divide it by 8 because that is how many books were bought.

Equation: i'm not sure

Answer: 8

Answer:8 dollars per book

Step-by-step explanation:

Keith started with 81 dollars, and hadd seventeen dollars left over. Subtract 81 from 17 and you will get how much he spent. 64 dollars spent to buy books. Next you would divide 64 by 8, because 8 is the amount of books he bought. 64 divided by 8 is 8. So each book cost 8 dollars

Equation: (81-17) divided by 8