You can divide the whole expression by -3:
Recalling that
Let's compare the middle term:
So, we want to complete
Which differs from 
by 16. So, if we add 16 to both sides, we have
Answer:
i think its B or D sorry if I'm wrong
We need to find 240,000 written as a whole number multiplied by a power of ten.
We need to get rid of the four zeros behind 24 in 240,000.
24 would be our whole number.
We would need to multiply 24 by 10,000 to get 240,000.
10,000 is equal to 
because there are 4 zeros. Ex. when multiplying 200 by 30, we first multiply 2 * 3 then we add 3 zeros to the end of 6. So for 10*10*10*10, we add 4 zeros to the end of 1 which equals 10,000.
So the answer would be 24 ×
Since it's a wall, I'm guessing it will only have access to half the circle? Therefore:
<em>Circle area formula: </em>πr²
<em>Radius:</em> 12/2 = 6ft
<em>Our case:</em>
(π * 6²)/2 =
36π/2 =
18π = 56.55ft²
The degree is found from the term with highest number of exponents
Thats 7x^4 y^7
4 + 7 = 11
Degree 11
