Solve the system of equations using the elimination method. 2x − 3y = 50;7x + 8y = −10 A. (0, 5)

B. (6, 10)

C. (10, −10)

D. (3, −3)

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