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

### Instruction:
Tire repair for each tire costs $7, plus another 50 cents for sales tax. If Juan needs all 4 tires repaired, how much is the final cost?

### Response:
 Gharama ya kurekebisha matairi yote manne ni 4 * 7 = $<<4*7=28>>28.
Gharama ya kodi ya mauzo kwa matairi yote manne ni 0.50 * 4 = $<<0.50*4=2>>2.
Jumla ya gharama ya kurekebisha matairi yote manne ni 28 + 2 = $<<28+2=30>>30.