Answer:
180 Square Feet
Step-by-step explanation:
For Rectangle:
l = 9 ft
b = 20 ft
Area of Rectangle

Answer: 6
Step-by-step explanation:
Answer: 4 to the 9th power. This is the answer to the picture. I used the app "Photomath"
Hope this helps :)
Answer: the addition of xy would make it a polynomial because it cannot simplify and the equation would have 3 different set of numbers that could not combine.