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

### Instruction:
George is about to celebrate his 25th birthday. Since his 15th birthday, he's been given a special $1 bill from his parents. They told him that on his 25th birthday, for every bill he still has, they will give him $1.5 in exchange. He spent 20% of his special bills. How much will he receive from his parents when he exchanges them?

### Response:
 เขาได้รับเหรียญพิเศษทั้งหมด 25 - 15 = <<25-15=10>>10 เหรียญ
เขาใช้เงินจากเหรียญพิเศษไป 2 เหรียญ
ดังนั้นเขายังคงเหรียญพิเศษอยู่ 10 - 2 = <<10-2=8>>8 เหรียญ
พ่อแม่ของเขาจะให้เขาได้รับเงิน 1.5 x 8 = $<<1.5*8=12>>12 สำหรับเหรียญพิเศษเหล่านี้