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

### Instruction:
Sara makes cakes during the five weekdays to sell on weekends. She makes 4 cakes a day and sells her cakes for $8. In 4 weeks she managed to sell all the cakes. How much money did she collect during that time?

### Response:
 Katika wiki anatengeneza 5 siku/wiki * 4 keki/siku = <<5*4=20>>20 keki.
Baada ya kuziuza mwishoni mwa wiki anapata 20 keki * $8/keki = $<<20*8=160>>160.
Katika wiki 4 alikusanya $160/wiki * 4 wiki = $<<4*160=640>>640.