75 % of the students are boys . There are 24 boys . What is the total number of Students PLEASE HELLO

Can someone me i’m confused. will give brainliest and a whole bunch of points

Select the sequences that are geometric.

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?