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

### Instruction:
Delores has some money. She buys a computer for $400 and a printer for $40. If she has $10 left, how much money, in dollars, did Delores have at first?

### Response:
Delores spent 400+40=<<400+40=440>>440 dollars.
Delores had 440+10=<<440+10=450>>450 dollars at first.
#### 450