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

### Instruction:
Trent walked 4 blocks from his house to the bus stop. He rode the bus 7 blocks to the library. Later, he came home the same way. How many blocks did Trent travel in all?

### Response:
 Idadi ya mitaa aliyosafiri kwenye njia ya kwenda maktaba ilikuwa mitaa 4 + mitaa 7 = <<4+7=11>>11.
Trent alirudi nyumbani kwa njia ile ile hivyo alisafiri mitaa 11 × 2 = <<11*2=22>>22.