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

### Instruction:
Melissa is repairing her shoes. For each shoe, it takes her 5 minutes to replace the buckle and 10 minutes to even out the heel. How many minutes does Melissa spend on this project total?

### Response:
First find the total time Melissa spends per shoe: 5 minutes + 10 minutes = <<5+10=15>>15 minutes
Then double the number of shoes * the time per shoe to find the total time she spends: 2 shoes * 15 minutes/shoe = 30 minutes
#### 30