Which function is a quadratic function? t(x) = (x – 4)2 + 3
9(x) = (2x + 4)3 + 3
x(x) = (–6x – 4)4 + 3(x + 2)2
s(x) = -(x - 6) + 3(x + 1)

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

How many solutions does the nonlinear system of equations graphed bellow have?

Write the pair of fractions as a pair of fractions with a common denominator