Each side of a square is 3m long. Each side is increase by 1m. Compare the areas of the room before and after the sides are lengthened. Express this comparison as a ration in the form of 1:x.

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