Please help me what's 2+2?

Ajar contains a mixture of 20 black marbles, 16 red marbles, and 4 white marbles, all the same size. find the probability of drawing a white or red marble on the first draw. 125 12 01 next question ask for turn it in

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Solve for n? [tex]z = \frac{3}{4} mn[/tex]