Agatha spends $15 on the frame and $25 on the front wheel, so she has spent a total of $15 + $25 = $40.
If she has $20 left to spend, then she had $40 + $20 = $60 at first.
#### 60
The answer is: 60
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
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?

### Answer:
