What two numbers add up to -3 and multiply to -100?

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

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15