Round seven point seven six to one decimal place

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?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Finding tbe values of the variables in each kite