Evaluate, i’m in algebra ii and there’s a test i need to study for

The solution set for 5v2 – 125 = 0 is

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

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?