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

### Instruction:
Joe’s mother gave him $56 to go to the store. Joe bought 7 notebooks and 2 books. Each notebook costs $4 and each book costs $7. How much money does Joe have left?

### Response:
 Joe alitumia 7*4+2*7=<<7*4+2*7=38>>38 dola.
Joe anabakiwa na 56-38=<<56-38=18>>18 dola.