Can someone me with this ? i am horrible at math.

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd

We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get