What is the probability that a given student is a graduate, given that he or she is on financial aid? Round to the nearest percent, [?]%

Ihave this math question 2/3 ÷2 1/10=

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

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