First off, there can't be a volume of an area.
A polynomial is basically a equation that has 2 or more terms that have to be algebraic.
X=83 degrees. This is because it is corresponding with angle 83 degrees. Corresponding angles are congruent.
(4.8 x 10^6)(3.6 x 10^3) / (2 x 10^5)
= (4.8 x 3.6) x 10^(6+3) / 2 x 10^5
= 17.28 x 10^9 / 2 x 10^5
= (17.28 / 2) x 10^(9 - 5)
= 8. 64 x 10^4
