System of solutions with matrices: [1 3 5]
[0 1 1/2]
What is the x-coordinate of the solution to the system?
a.) 7/2
b.) 13/2
c.) 5
d.) 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