Answer:
i think this is the answer not 100 percentage sure V≈84.82cm³
Answer:

Step-by-step explanation:
Standard form is basically where the degrees of the terms are in descending order.
First, let's distribute the negative sign to the terms in the second parentheses:

Now, we can just combine like terms with the terms from the first parentheses:

So, our answer is: 
3/10 is the smallest hoped this helps
The width is 42 inches. If you add 42+42+30+30, it equals 144. (l+l+w+w)
A=s^2, where s is a side length, and we are told A=150ft^2 so:
s^2=150
s=√150
s≈12.25 ft
So you would need a piece of carpet 13ft by 13ft