the spinner picture is fun 25 times and lands 5 15 times what is the experimental probability of landing on a 5​

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Solutions for 2x+7 less than or equal to 3x-5

Precalculus question, image attached.