Question 1170406
Let's solve the problem step-by-step.

**Given:**

* The equation relating interest paid (I) and interest rate (r):
    * I / 175.393 + 0.663 = r
* The credit card interest rate (r): 19.8%

**Goal:**

* Find the amount of interest paid (I) during the 3 years.

**Solution:**

1.  **Substitute the interest rate (r) into the equation:**
    * I / 175.393 + 0.663 = 19.8

2.  **Isolate the term with I:**
    * I / 175.393 = 19.8 - 0.663
    * I / 175.393 = 19.137

3.  **Solve for I (interest paid):**
    * I = 19.137 * 175.393
    * I ≈ 3356.55

**Therefore, the amount of interest paid during the 3 years is approximately $3356.55.**