Demonstrati ca mijloacele laturilor unui trapez isoscel sunt varfurile unui romb

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?

Divide reduce the answer to lowest term 3/7 divided 1 1/6

If wxyz is a square, which statements must be true? plz < 3