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The length is 6 inches.
The width is 1 foot = 12 inches.
The perimeter is (6 + 12 + 6 + 12) = 36 inches (3 feet) .
"14 inches" is false.
Answer:
We have that 
Step-by-step explanation:
We have just to replace n=10 on the general equation

Therefore:

Answer:
The answer is B
Step-by-step explanation:
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Both B and D are 3rd degree, but only D is a 3rd degree binomial because it has only 2 terms. The answer is D.