Penny needs 30 cubic ft of sand to fill a sandbox. She plans to buy 10 bags of sand for her sandbox. Each bag contains 2.9 cubic feet of sand. Is this a reasonable plan? A. Yes, it is reasonable because each bag covers around 3 cubic feet. So in order to cover 30 cubic feet she would need 10 bags to be sure she has enough and end up with a little extra. B. No, it is not reasonable because each bag covers around 3 cubic feet. So in order to cover 30 cubic feet, she would need at least 30 bags to be sure she has enough sand. C. No, it is not reasonable because each bag covers a bit less than 3 cubic feet. So in order to cover 30 cubic feet, she would need to buy 11 bags to be sure she has enough sand
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