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?
Use reasoning to answer the following question.
60
Agatha spends 15 + 25 = 40 dollars.

Agatha had 40 + 20 = 60 dollars at first.

.

Thus, the answer is 60