This graph shows the relationship between the number of gallons of milk purchased and the cost.
Use the ordered pairs from the graph to enter the missing values
in the table.
Enter your answer by filling in the boxes.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

Factor the expression using the gcf. the expression 21m−49n factored using the gcf