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

### Instruction:
 Ann, Bill, Cate, na Dale kila mmoja hununua pizza za kibinafsi zilizokatwa katika vipande 4. Ikiwa Bill na Dale hula 50% ya pizza zao na Ann na Cate hula 75% ya pizza, vipande vingapi vya pizza vimebaki visiloliwa?


### Response:
 Jumla, kuna vipande vya pizza 4 x 4 = <<4*4=16>>16.
Bill na Dale hula 2 x 4 x 0.50 = <<2*4*0.50=4>>4 vipande.
Ann na Cate hula 2 x 4 x 0.75 = <<2*4*0.75=6>>6 vipande.
Jumla, vipande 4 + 6 = <<4+6=10>>10 vimekula.
Kuna vipande vya pizza 16 - 10 = <<16-10=6>>6 visivyoliwa.