Answer:
A, B, C
Step-by-step explanation:
Assuming the choices are:
A. 
B. 
C. A+
D. 
Put simply, a polynomial in this case will be a function that has at least one variable raised to a power greater than 1.
Choice A already has a variable raised to a power greater than 1 (
), so no additional manipulation is needed.
Choice B also has a term that is already raised to a power greater than 1 (
). It is the same for choice C ().
Choice D does not have an obvious variable raised to a power greater than 1. When the equation is manipulated it becomes 
. Since -1 is less than 1, choice D is not a polynomial.
600 grams = 0.6 kilograms
0.6 x 4 = 2.4 kilograms
Basically any two numbers whose product is 44^2 = 1936.
so 16×121 = 1936
so the pair is 16 and 121
8:64 = 1:8 (divide both sides by 8)
Her first rate was faster. The 10 minutes with a change in elevation of -200ft.
In order to solve this you need to have the same minutes. In this problem, I just simply took the 10 minutes and the -200ft and doubled it. Now both rates have 20 minutes. The first rate would have gone -400ft in 20 minutes while the second rate was only -300ft in 20 minutes. I hope this wasn't confusing, and I'm willing to explain more.
