This is indeed a polymomial, it's just not in the correct order. The term with the highest exponent goes first, dictating the degree of the whole entire polynomial. In descending order, the polynomial is written correctly as

. It is a third degree polynomial with a leading coefficient of -2.
Step-by-step explanation:
By using the Pythagoras' Theorem,
Height of Kite
= √[(50m)² - (35m)²]
= 35.71m.
1.5 ft per second.
Divide the 90 by 60.
(4x + 7)- (8- 3x) written in standard form is 7x-1 :)