Solve for L: 84= 3L+36

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.