Which triangle is ABC similar to ?

Use set builder notation to represent the following set: { -3, -2, -1, 0}

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?

The quadratic function h(t)=-16.1t^2+150 choose the graph representation