Letter B. X is a vertical angle, and so is F. Vertical angles are all congruent.
we have

we know that
The volume of a cube is equal to

where
b is the length side of a cube
Using a graph tool------> find the roots of the polynomial
see the attached figure
x=4
so

therefore
<u>The answer is</u>
the length side of a cube is equal to (x-4)
We are given the retail price of desk as $320. The store takes 50% off of the retail price of desk, then its price would become half of the original.
So its new price would be $160.
Now it says that it takes an additional 20% off of all furniture on store's holiday sale. So we need to cut off 20% from new price $160.
Holiday discount = 20% of $160 = 0.2 × 160 = 32.
Final selling price would be = $160 - $32 = $128.
So $128 is the final answer.
I know for a fact B is wrong, so you can mark that off. I got C.
Your answer is no solution (because a negative square root doesn't exist)
first, you divide all sides by five and then take b, half it then square it