Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
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?

### Response:
 Keki ni $5 x 4 = $<<5*4=20>>20 kwa sababu kuna vipande 4 kwa kila keki.
Duka la keki linapata $20 x 9 = $<<20*9=180>>180 ikiuza keki 9.