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

### Instruction:
Leonard and his brother Michael bought presents for their father. Leonard bought a wallet at $50 and two pairs of sneakers at $100 each pair, while Michael bought a backpack at $100 and two pairs of jeans at $50 each pair. How much did they spend in all?

### Response:
 Jozi mbili za viatu vya michezo zinagharimu 2 x $100 = $<<2*100=200>>200.
Hivyo, Leonard alitumia $50 + $200 = $<<50+200=250>>250.
Jozi mbili za suruali zinagharimu 2 x $50 = $<<2*50=100>>100.
Hivyo, Michael alitumia $100 + $100 = $200.
Hivyo, jumla ya kiasi walichotumia ni $250 + $200 = $<<250+200=450>>450.