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

### Instruction:
 Bob alianza wiki na $80. Jumatatu pekee, alitumia nusu ya pesa hizo. Jumanne, alitumia moja ya tano ya kiasi kilichosalia kutoka Jumatatu. Jumatano, alitumia 3/8 ya kiasi kilichosalia kutoka Jumanne. Anabakiwa na kiasi gani sasa?


### Response:
 Jumatatu, alitumia nusu ya $80 hivyo akabakiwa na $80-(1/2)*$80 = $<<80-(1/2)*80=40>>40
Jumanne, alitumia 1/5 ya $40 hivyo akabakiwa na $40-(1/5)*40 = $<<40-(1/5)*40=32>>32
Jumatano, alitumia 3/8 ya $32 hivyo akabakiwa na $32-(3/8)*$32 = $20