What is the value of x? 18-7x = -20.5

Evaluate the expression. (9 + 5)(3 + 2)0

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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