Two paperback books cost a total of $10. How much change will Stacy get if
she buys two hardcover books and two
paperback books and gives the clerk
three $20 bills?

Which number completes the system of linear inequalities represented by the graph? y> 2x – 2 and x + 4y 2 et 2 3 4

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?