Order these from greatest to least:
11. 0, -2,4
12. -1, -3, 3
13. 5, 1, 2,0
14. -2, 9, -7,-6
15. -12, -2, -7, 13
16. 0,-5, 1, -1,5

Pranav and molly are selling pies for a school fundraiser. customers can buy blueberry pies and pumpkin pies. pranav sold 6 blueberry pies and 4 pumpkin pies for a total of $106. molly sold 6 blueberry pies and 3 pumpkin pies for a total of $90. find the cost of each of one blueberry pie and one pumpkin pie