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

### Instruction:
Bert was able to sell 8 toy phones for $18 each, while Tory was able to sell 7 toy guns for $20 each. How much more did Bert earn than Tory?

### Response:
 Bert alifanikiwa kupata 8 x $18 = $<<8*18=144>>144 kwa simu za kuchezea.
Wakati Tory alifanikiwa kupata 7 x $20 = $<<7*20=140>>140 kwa bunduki za kuchezea.
Hivyo, Bert alipata $144 - $140 = $<<144-140=4>>4 zaidi ya Tory.