Martin used a coordinate plane to design the garden shown. Each unit on the grid represents 10 yards. How many yards of rope does Martin need to rope off the perimeter of the garden? Enter your answer in the box.

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Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

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