What is 5^2 +b^2 =12^2

What is a possible solutions of the x> 3?

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?

Triangle knm is what is true about the sides of knm