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

### Instruction:
Agatha has some money to spend on a new bike. She spends $15 on the frame, and $25 on the front wheel. If she has $20 left to spend on a seat and handlebar tape, how much money, in dollars, did she have at first?

### Response:
 อะกาธาใช้เงิน 15+25=<<15+25=40>>40 ดอลลาร์
อะกาธามีเงินตอนแรก 40+20=<<40+20=60>>60 ดอลลาร์.