Acardboard box has a mass of 800 grams when 4 books of equal mass are put into the box the filled box has a mass of 8 kilograms what is the mass of each book of gram

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?

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3