A pie shop charges $5 for a slice of pie. They cut each whole pie into 4 slices. How much money will the pie shop make if they sell 9 pies?
A pie contains 4 slices so the pie shop makes 5*4=$<T>multiply(4, 5)=20 for a pie.
If they sell 9 pies, they make 9*20=$<T>multiply(9, 20)=180
