If the circumference of a circle is 9.1 pi, what is the diameter and radius in terms of pi?

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

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

Nikolas calculated the volume of the prism. his work is shown below.