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

### Instruction:
Jerry is sweeping up pieces of broken glass in the parking lot. He sweeps up 20 amber pieces, 35 green pieces, and some clear pieces. If the green pieces are 25% of the total glass he sweeps up, how many pieces were clear?

### Response:
 Idadi jumla ya vipande vya kioo anachosafisha ni 20 + 35 = <<20+35=55>>55 vipande.
Idadi ya vipande vya rangi ya kijani ni 25% ya 55 = <<25%of55=13.75>>13.75 vipande.
Idadi ya vipande vya wazi ni 55 - 20 - 35 = <<55-20-35=0>>0 vipande.