Juana opens a savings account for her son. The account has a fixed interest rate, r, which is compounded annually. What does the factor 300 represent in this expression? 300(1+r) Interest rate Initial Deposit 0 Years in the bank Balance after 7 years

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?