Klara bought a dozen bags of bird food for $ 27 use compatible numbers to find the approximate cost of six dozen bags of bird food. show how you estimated

12 dozen=$27 of bird food=1 bags
24 dozen=$54 of bird food=2 bags
36 dozen=$81 of bird food=3 bags
48 dozen=$108 of bird food=4 bags
60 dozen=$135 of bird food=5 bags
72 dozen=$162 of bird food=6 bags
estimation=$160 would cost for 6 bags of bird food