Does 2/5 round to 1/2

Which expression is equivalent to sq-80

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

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