What is the unit rate for40 2.80

Chose the graph below that represents the following system of inequality’s

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?

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)