You spin the spinner two times find the probability that the spinner stops on 1 then 2

How do i do this activity, is appreciated

What is the solution set of the quadratic inequality x^2-5< or equal to 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