Write a function that, given a target amount of money and a list of possible coin denominations, returns the number of ways to make the target amount using the coin denominations.

Example:

Inputs:

- "Target": 5
- "Coins": [1, 2, 5]

Output: 4

There are 4 ways to make 5:

• 1 + 1 + 1 + 1 + 1
• 1 + 1 + 1 + 2
• 1 + 2 + 2
• 5