## Algebra: A Combined Approach (4th Edition)

1. Find the area of the deck with the formula A = lw. A = 35*20 = 700 2. Each gallon covers 200 sq feet, so to determine how many gallons we need, we divide the area of the deck by 200: 700 $\div$ 200 = 3.5 We need 3.5 gallons.