She could put a group of ten
Polynomial of degree 2 are those polynomials with highest power of two, from our choices, the polynomials of degree two are:
10x^2-x^(1/2)
6x^2-6x+5
The rest of the choices are polynomials of degree 3.
Answer: x =4
Mary is 8 and John is 4
Explanation:
John = x
Mary = 5x - 12 or 2x
Solve for x
5x - 12 = 2x
-12 = -3x
X=4
Hope that helps!
The answer is A. Take the signs and convert them to the corresponding equation.