Find the domain of the function expressed by the formula: y=x²+8
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Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

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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.