Simplify the expression. First use the distributive property to remove any parentheses.2(5x + 8 + y)
A. 10x + 16 + 2y
B. 10x + 16 + y
C. 10x + 8 + 2y
D. 10x + 8 + y
Answer: A
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Convert the improper fraction to a mixed number.- 
A. -2
B. -3
C. -1
D. -2
Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.The following graph shows that more and more people in a certain country are moving from urban cities to the suburbs. The percent, p, of the population living in urban cities can be estimated by the equation 
and the percent of the population living in the suburbs by the equation
In both equations, t represents the number of years since 2000. That is, 
/> corresponds to 2000, 
corresponds to 2001, and so on. Assuming this trend continues, use both equations to estimate the year in which the percent of the population of this certain country living in urban cities will be equal to the percent living in the suburbs.
A. 2015
B. 2011
C. 2013
D. 2019
Solve the problem.A piece of equipment was purchased by a company for $10,000 and is assumed to have a salvage value of $3,000 in 10 years. If its value is depreciated linearly from $10,000 to $3,000, find a linear equation in the form V = mt + b, t time in years, that will give the salvage value at any time t, 
A. T = - 700V + 10,000 B. V = - 700t + 10,000 C. V = - 700t - 10,000 D. V = 700t + 10,000
Perform the indicated operations.(-2x3 - 5x2) - (-6x3 + 9x2 - 7)
A. -8x3 + 4x2 + 7 B. 4x3 - 14x2 - 7 C. -8x3 + 4x2 - 7 D. 4x3 - 14x2 + 7