Someone please help me solve this.

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Polynomial that can be factored as (3x-4)(3x+4)

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