1. **Problem Statement:** Neville wants to calculate the total charcoal needed for the grills at the barbeque cook-off. 2. **Inputs Given:** - charcoal per grill (lbs/grill) - number of grills (grills) 3. **Formula:** $$\text{total charcoal} = \text{charcoal per grill} \times \text{number of grills}$$ 4. **Explanation:** To find the total charcoal, multiply the amount of charcoal needed for one grill by the total number of grills. 5. **Intermediate Work:** If we denote charcoal per grill as $c$ and number of grills as $n$, then: $$\text{total charcoal} = c \times n$$ 6. **Final Answer:** The correct action is to multiply charcoal per grill by number of grills to get total charcoal (lbs).