Help?

btw so sorry for terrible photo quality

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

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily

The area of the map is the product of the length and width. write and expression for the area as the product of the two binomials do not multiply