Raphael went store and brought 2 1/2 pounds of chicken for 9.00 . At this this rate, how much would it cost for for 1,2, and 3 pounds of chicken]

1 pounds of chicken cost $
2 pounds of chicken cost $
3 pounds of chicken cost $

1 pound of chicken would cost $3.60

2 pounds of chicken would cost $7.20
3 pounds of chicken would cost $10.80