1. **State the problem:** We want to multiply $7(20r + 10)$ using the area model. 2. **Formula used:** The distributive property states that $a(b + c) = ab + ac$. 3. **Apply the distributive property:** Multiply 7 by each term inside the parentheses separately. 4. **Find partial products:** - $7 \times 20r = 140r$ - $7 \times 10 = 70$ 5. **Write the product:** $$7(20r + 10) = 140r + 70$$ This means the total area (product) is the sum of the areas of the two rectangles, $140r$ and $70$. This completes the multiplication using the area model.