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

### Instruction:
John's hair grows 1.5 inches every month.  Every time it gets to 9 inches long he cuts it down to 6 inches.  A haircut costs $45 and he gives a 20% tip.  How much does he spend on haircuts a year?

### Response:
 Nywele zake hukua inchi 1.5*12=<<1.5*12=18>>18 kwa mwaka.
Hivyo anahitaji kuzikata kila baada ya miezi 18/9=<<18/9=2>>2.
Hii inamaanisha anapata kukata nywele mara 6 kwa mwaka.
Chakula cha mchana ni ziada ya 45*.2=$<<45*.2=9>>9.
Hivyo kila kukata nywele gharama ni 45+9=$<<45+9=54>>54.
Hivyo analipa 54*6=$<<54*6=324>>324 kwa mwaka.