Multiply.(-4x5y2)(4xy2)(8x5y)

A. 8x25y4
B. -128x25y4
C. 8x11y5
D. -128x11y5


Answer: D

Mathematics

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The line graph shows the costs of a 30-second television spot (in thousands of dollars) during the Super Bowl from 1995 to 2005. Approximate the percent increase in the cost of a 30-second spot from the Super Bowl in 2000 to the Super Bowl in 2005.

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Solve.The area of the playing surface of the tennis court shown is  square feet. If its width is  feet, find its length. 

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Solve the problem.A repair company's charge for repairing a certain type of copy machine fits the model  where y is the number of dollars charged and x is the number of minutes the repair person is on the job. How many minutes would it take for the cost of repair to reach $50? (Round to the nearest minute.)

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Mathematics