Answer:x+12
Step-by-step explanation:
Answer:
its d
Step-by-step explanation:
the options can be eliminated by using common sense.
Answer:
3: 
4: 
Step-by-step explanation:
Question 3 can be re-written as:

which equals:

Question 4 can be re-written as:

Doing the first 2 brackets gives us:

Expanding these two:

Simplifying it:

Answer:
900 ft!
Step-by-step explanation:
Volume = l ∗ w ∗ h