Please help me out with question ASAP please!!!

Find the value of x, y and z

Which graph represents an even function?

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

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