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

### Instruction:
 Bonnie na Samuel walikwenda sokoni pamoja. Bonnie alinunua matofaa 8. Samuel alinunua matofaa 20 zaidi ya Bonnie. Kisha Samuel akala nusu yao na akatumia 1/7 yao kutengeneza pai ya matofaa. Samuel ana matofaa mangapi yaliyobaki?


### Response:
 Samuel alinunua matofaa 8+20 = <<8+20=28>>28.
Samuel alikula matofaa 28/2 = <<28/2=14>>14.
Samuel alitumia matofaa 28/7 = <<28/7=4>>4 kutengeneza pai ya matofaa.
Samuel ana matofaa 28-14-4 = <<28-14-4=10>>10 yaliyobaki.