Deion's bill for breakfast at a restaurant was $34. He left a 20% tip. What was the total cost of his breakfast, including tip?
Round your answer to the nearest dollar

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Acircle has a circumference of 28.36 units what is the diameter of the circle

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.