9. Be Precise The area of a rectangle is 105 square centimeters. The width of the rectangle is 7 centimeters. What is the perimeter of the rectangle?

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To determine the perimeter of the rectangle, follow these steps:

1. **Understand the Given Information:**
   - **Area of the rectangle (A):** 105 square centimeters (cm²)
   - **Width of the rectangle (w):** 7 centimeters (cm)

2. **Find the Length of the Rectangle (l):**
   
   The area of a rectangle is calculated using the formula:
   $$
   \text{Area} = \text{Length} \times \text{Width}
   $$
   
   Plugging in the known values:
   $$
   105 = l \times 7
   $$
   
   To find the length (**l**):
   $$
   l = \frac{105}{7} = 15 \text{ cm}
   $$

3. **Calculate the Perimeter of the Rectangle:**
   
   The perimeter (**P**) of a rectangle is given by the formula:
   $$
   P = 2(\text{Length} + \text{Width})
   $$
   
   Substituting the known values:
   $$
   P = 2(15 \text{ cm} + 7 \text{ cm}) = 2(22 \text{ cm}) = 44 \text{ cm}
   $$

4. **Final Answer:**
   
   The perimeter of the rectangle is **44 centimeters**.
The perimeter of the rectangle is 44 centimeters.

9. Be Precise The area of a rectangle is 105 square centimeters. The width of the rectangle is 7 centimeters. What is the perimeter of the rectangle?

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