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

### Instruction:
Sarah buys 20 pencils on Monday. Then she buys 18 more pencils on Tuesday. On Wednesday she buys triple the number of pencils she did on Tuesday. How many pencils does she have?

### Response:
 Sarah ananunua 18+20 = <<18+20=38>>38 penseli jumla Jumatatu na Jumanne
Jumatano ananunua penseli 3 * 18 = <<3*18=54>>54
Sasa ana penseli 38+54 = <<38+54=92>>92