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

### Instruction:
Jeff has 16 GB of storage on his phone. He is already using 4 GB. If a song takes up about 30MB of storage, how many songs can Jeff store on his phone? (There are 1000 MB in a GB).

### Response:
 Jeff ana GB 16-4 = <<16-4=12>>12 zilizobaki kwenye simu yake.
Hii ni 12*1000= <<12*1000=12000>>12,000MB.
Kwa hivyo, Jeff anaweza kuhifadhi 12,000/30=<<12000/30=400>>400 wimbo kwenye simu yake.