Evaluate 3x^2+1 when x=-1

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?

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

Which statements are true about additional information for proving that the triangles are congruent check all that apply