Which expresses 54 : 81 in its simplest form?

A)9/6
B)6/9
C)3/2
D)2/3

How do you summarize data in a two-way frequency table?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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