Raphael went to the store and bought 2 1/2 pounds of chicken for $9.00. At this rate, how much would it cost for 1, 2, and 3 pounds of chicken?
1 pound of chicken costs $ __
2 pounds of chicken cost $ __
3 pounds of chicken cost $ __
1 pound of chicken costs $3.60
2 pounds of chicken cost $7.20
3 pounds of chicken cost $10.80