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

### Instruction:
Cole wants to fence his backyard on three sides. His backyard is 9 feet along the sides and 18 feet along the back. The neighbor behind him agreed to pay for half of their shared side of his fence, and the neighbor on his left agreed to pay for a third of their shared side. Fencing costs $3 per foot. How much does Cole have to pay for the fence?

### Response:
 Cole anapaswa kulipa 3 * 9 = $<<3*9=27>>27 kwa upande mmoja wa ua wa upande. 
Kwa upande wa pamoja wa kushoto, anapaswa kulipa theluthi mbili ya 27, hivyo anapaswa kulipa 27 * 2 / 3 = $<<27*2/3=18>>18. 
Ujenzi wa ua wa nyuma utagharimu 3 * 18 = $<<3*18=54>>54. 
Anapaswa kulipa nusu ya ua huu, hivyo utagharimu 54 * 50% = $<<54*50*.01=27>>27. 
Hivyo, Cole anapaswa kulipa 18 + 27 + 27 = $<<18+27+27=72>>72 kwa ujenzi wa ua.