The chance of rolling a sum of three with two number cube is 1/18 theoretical or experimental

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?

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is