1. **State the problem:** We need to find the value of $w^r$ when $w=5$ and $r=3$. 2. **Formula:** The expression $w^r$ means $w$ raised to the power of $r$, which is multiplying $w$ by itself $r$ times. 3. **Substitute the values:** Replace $w$ with 5 and $r$ with 3: $$w^r = 5^3$$ 4. **Calculate the power:** This means: $$5^3 = 5 \times 5 \times 5$$ 5. **Multiply step-by-step:** $$5 \times 5 = 25$$ $$25 \times 5 = 125$$ 6. **Final answer:** $$5^3 = 125$$ So, the value of $w^r$ when $w=5$ and $r=3$ is 125.