Answer:
9.
Step-by-step explanation:
The highest power is 3*3 = 9, so it's 9.
Answer:
20ft^2
Step-by-step explanation:
The length is currently three feet, if you add two feet to three that makes five feet. Five times four is twenty.
I hope this helps!
Answer:
-5
Step-by-step explanation:
The last number is always the y intercept. This number is -5 in this case.
= 
= 7/4