During the day Sam spent $4.85 on lunch. He also bought. Two book for $7.95 each at the end of the day he had $8.20 left how much money did he start with

He started with $28.95

Step-by-step explanation:

You add all the money he spent and how much he had left because this equals how much money he had all together before he bought anything.

x = 4.85 + 7.95 (2) + 8.20

x = 4.85 + 15.90 + 8.20

x = 28.95