Asolid has faces that consist of 2 triangles and 3 rectangles. the solid has 9 edges. how many vertices does the solid have? a. 6 vertices b. 8 vertices c. 10 vertices d. 12 vertices

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?