Help and quick! What is the greatest common factor of these numbers. 36 and 54

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

What expression is equivalent to 42x-56y

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