Use the Laws of Exponents to simplify. Write the answer with positive exponents. All variables are nonzero.(-5x4y-5)(3x-1y)
A. 
B. 
C. 
D. -15x3y6
Answer: A
Mathematics
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Multiply.3(4)
A. 2 B. 120 C. 12 D. 9
Mathematics
Write the fraction as a decimal. Round to the nearest thousandth if necessary.
A. 1.037 B. 10.358 C. 1.035 D. 1.036
Mathematics
Solve.Paul is 5 feet 8 inches tall. Convert this height to centimeters. Round to the nearest tenth of a centimeter.
A. 26.8 cm B. 160.4 cm C. 223.0 cm D. 172.7 cm
Mathematics
Solve the problem.The price of a certain commodity is a function of supply and demand. The table below shows the price of the commodity per barrel between 2012 and 2017. Find the average annual rate of change between 2015 and 2017.
A. $3.00 per year B. -$12.00 per year C. $12.00 per year D. $24.00 per year
Mathematics