Question: Explain how to write and solve the equation to solve the problem.

Bella saved enough money to buy 3 books. If each book cost $13, how much money did Bella

she saved 39 dollars because, one book is 13 dollars she wanted 3 of them. so the equation would be 13 x 3 =39, so in the end she saved 39 dollars to buy those three books

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.