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

### Instruction:
 Kayla na Theresa walikwenda kununua baadhi ya chocolate na soda. Theresa alinunua mara mbili idadi ya chocolate na soda ambazo Kayla alinunua. Ikiwa Theresa alinunua chocolate 12 na soda 18, Kayla alinunua jumla ya chocolate na soda ngapi?


### Response:
 Idadi ya chocolate ambazo Kayla alinunua ni chocolate 12 / 2 = <<12/2=6>>6 chocolate.
Idadi ya soda ambazo Kayla alinunua ni soda 18 / 2 = <<18/2=9>>9 soda.
Jumla ya chocolate na soda ambazo Kayla alinunua ni soda 9 + chocolate 6 = <<9+6=15>>15 vitu.