Agroup of friends is planning a boating trip it cost $2,500 to rent the boat lunch costs $13 per adult and $8 per child write an algebraic expression for the total cost for a group of b adults and c children

maximum area = xy = (16)(32) = 512 ft2

to maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.'

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