Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 87
B. 8-11
C. 8-19
D. 
Answer: A
Mathematics
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Solve the problem.An auditorium has 20 rows with 10 seats in the first row, 12 in the second row, 14 in the third row, and so forth. How many seats are in the auditorium?
A. 620 seats B. 400 seats C. 390 seats D. 580 seats
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Provide an appropriate response.Markup is sometimes referred to as net profit.
A. True B. False
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Determine which inequality matches the graph.
A. x ? -2 B. y ? -2 C. y ? -2 D. x ? -2
Mathematics
Use the laws of exponents to simplify. Do not use negative exponents in your answer.(x2/3y-4/5)1/2
A. 
B. 
C. 
D. -x1/3y2/5
Mathematics