You can use feet or inches because they are both on the diagram and they are both a part of the same measuring system. If you use inches, you would be using larger numbers, but if you used feet, you would be using fractions.
I hope this helps!
Answer:
Use ur brain and a calculator
Step-by-step explanation: Install a calculator on ur laptop. Put ur thinking cap on. :) Hope this helps!
Answer:
D. 32.
Step-by-step explanation:

hope this helps.
Answer:
1,200
Step-by-step explanation:
20 X 12 X 5 = 1,200
Answer:8.55
Step-by-step explanation: