You are building a multi-level deck. a. For each level, write a polynomial in standard form that represents the area of that level. Then write the polynomial in standard form that represents the total area of the deck. Level 1: Level 2: Total area: b. What is the total area of the deck when x=20? Total Area: ft2 c. A gallon of deck sealant covers 400 square feet. How many gallons of sealant do you need to cover the deck in part (b) once? gallons