Your question can be reworded as
? X 3 = 20.
All you do is divide by 3 on both sides to isolate the x. It basically looks like a magician makes the 3 disappear and then appear on the other side.


Tadah! We have mathmagically found the answer.
The answer is

in fraction form or

in decimal form.
Answer:
-3c-2d^(2)e^(101)-3
Step-by-step explanation:
Step-by-step explanation:
Apply Quotient of Powers:

The 2nd question is the first option
The 3rd question is the third option
Answer:
square foot per hour
Step-by-step explanation:
The total area covered = 34 square foot
Time taken = 12 hours
This implies that it takes 12 hours to cover 34 square foot.
Using proportionality,
12 hours ---------------------------------------> 34 square foot
Dividing both sides by 12
---------------------------> 
1 hour --------------------------------------->
square foot per hour
The unit rate in square feet per hour is
square foot per hour