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

### Instruction:
Yanna bought 60 apples. She gave eighteen apples to Zenny. She gave six more apples to Andrea and kept the rest. How many apples did she keep?

### Response:
 Baada ya kumpa Zenny matofaa 18, Yanna alibakiwa na matofaa 60 - 18 = <<60-18=42>>42.
Baada ya kumpa Andrea matofaa 6, Yanna alibakiwa na 42 - 6 = 36 matofaa.
Kwa kuwa alimpa Andrea matofaa 6, Yanna alibakiwa na 42 - 6 = 36 matofaa.
Hivyo, Yanna alibakiwa na matofaa 36.