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

### Instruction:
Yella's computer usage last week was 91 hours. If she plans to use the computer 8 hours a day for this week, how much less ​is her computer usage for this week?

### Response:
 Yella anaweza kutumia kompyuta masaa 8 x 7 = <<8*7=56>>56 kwa wiki hii.
Kwa hiyo, Yella anaweza kutumia kompyuta masaa 91 - 56 = <<91-56=35>>35 chini kwa wiki hii.