Sylvie is feeding her turtles. Each turtle needs 1 ounce of food per 1/2 pound of body weight. She has 30 pounds of turtles. Each jar of food contains 15 ounces and costs $2.  How much does it cost to feed the turtles?
She needs 60 ounces of food because 30 / .5 = <<30/.5=60>>60
She needs 4 jars of food because 60 / 15 = <<60/15=4>>4
It will cost $8 to feed them because 4 x 2 = <<4*2=8>>8
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