Question

Daryl wants to buy a science book and a math book. The cost of a science book is $8 more than the cost of a math book. The cost of nine math books is the same as the cost of seven science books. What is the cost of each book?

Answer 1

The cost of nine math note books is 72$


Sense every note book is 8$ and the goal is to buy nine then we would be multiplying for the answer.

The cost is 72$ because 8x9 is 72