Solve the problem.The revenue achieved by selling x graphing calculators is figured to be 
The cost of each calculator is 
How many graphing calculators must be sold to make a profit (revenue - cost) of at least $46.20?
A. {x?7 < x < 33}
B. {x?9 < x < 31}
C. {x?-3 < x < 23}
D. {x?8 < x < 6}
Answer: A
Mathematics
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A. -14 B. -49 C. 14 D. 49
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A. 16 B. 24 C. 6 D. 4
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Solve the problem.A cab ride costs $1.70 base plus $0.90 a mile. How far can you go for $13.40?
A. 16 miles B. 14 miles C. 15 miles D. 13 miles
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Write the equation that results in the desired transformation.The graph of y = x2, vertically stretched by a factor of 8
A. y = 8(x - 8)x2 B. y = 8x2 C. y = -8x2 D. y = (x - 8)2
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