Question

Need help on hw

Perry was going to sell all of his stamp
collection to buy a video game. After
selling half of them he changed his mind.
He then bought twenty more. How many
did he start with if he now has 40?

Answer 1

Perry started with 40 stamps

Explanation:

If perry is starting with 40 stamps and gets rid of half of them he will have 20 stamps + 20 stamps would be 40.