Calculate the Average: Finding Mean of 15, 0, and 0

To solve this problem, we'll calculate the average of the given numbers $15$, $0$, and $0$.

• Step 1: Find the sum of the numbers.
  $\quad 15 + 0 + 0 = 15$
• Step 2: Count the number of terms.
  $\quad$ There are 3 terms in total: $15$, $0$, and $0$.
• Step 3: Calculate the average using the formula:
  $\quad \text{Average} = \frac{\text{Sum of terms}}{\text{Number of terms}} = \frac{15}{3}$
• Step 4: Perform the division.
  $\quad \frac{15}{3} = 5$

Therefore, the calculated average is $5$.

Our calculated average $5$ corresponds with the correct answer choice.