You want to spread some mulch down in your flower garden. The bed is in the shape of an equilateral triangle with edges of 25 ft. In the middle is a large tree with a 5 foot circumference. There are also 10 small bushes that each have a 1 foot diameter. The mulch works best when spread three inches deep. Since the bags each hold 2 cubic feet of mulch, how many bags should you buy and how much will it cost at $6.43 plus 6% tax per bag?
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