Question

You build and sell toy cars for $36 each. So far, you have built 25 toy cars. How many more toy cars will you have to build and sell to earn $1620

Answer 1

you need 20 more cars yah probably don't want an expansion

Answer 2

Multiple what you have already: 36x25 = 900
Subtract that from how much you need to earn:
1620-900=720
Divide how much more money you need by how much money each car is:
720/36= 20

You need 20 more cars