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

### Instruction:
Lucy has $65 in the bank. She made a $15 deposit and then followed by a $4 withdrawal. What is Lucy's bank balance?

### Response:
 Lucy alikuwa na $65 + $15 = $<<65+15=80>>80 baada ya kufanya amana.
Hivyo, salio lake la benki ni $80 - $4 = $76 baada ya kutoa $4.