If m L=65, then m LJK=___ ? PLS HELP ASAP

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?

2x minus y equals 6, x plus y equals negative 3

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?