Me i have no idea my math teacher handed this out and he just sat on his desk and put his head down someone me a

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

Chanelle deposits $7,500 into the bank. she does not withdraw or deposit money for 6 years. she earns 6% interest during that time. what will the balance be when she is finally able to withdraw her money?

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0