Answer:
c
Step-by-step explanation:
This phrase can be written as 20 + f.
So, 20 + f is the answer.
Answer:
11xy^4(y+7x)
Step-by-step explanation:
Make drawing (see attachment)
do big rectangle minus triangle
big rectangle area=lenght timess width=22 times 33=726 square feet
triangle=1/2 times base times height=1/2 times 9 times 10=45 square feet
rectangle-triangle=726-45=681 square feet