Addition & Subtraction of Decimals Sam wants to buy two books. One costs $3.65 and the other costs $4.72. If Sam has $7 in his pocket, how much more money does he need to buy both books?

At which value in the domain does f(x) =0?

How do you find principle and simple interest

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?