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

### Instruction:
Ruth goes to school 8 hours a day and 5 days a week. She is in math class 25% of this time. How many hours per week does she spend in math class?

### Response:
 เธอไปโรงเรียน 40 ชั่วโมงเพราะ 5 x 8 = <<5*8=40>>40
เธอเรียนคณิตศาสตร์ 10 ชั่วโมงต่อสัปดาห์เพราะ .25 x 40 = <<.25*40=10>>10