What is the surface are of a cubic box that contains a baseball taht has a diameter of 3 inches?

Areal estate agent earns $32,000 a year plus $1,000 for each apartment he sells. write an equation that shows the relationship between the number of apartments abe sells, n, and the total amount he earns in a year, e. what is the total amount abe would earn from selling 10 apartments in one year

How to do this , and can some one explain

Can someone me out here and the tell me the greatest common factor