Solve the equation.-5a + 2 + 6a = 15 - 27
A. {44}
B. {-44}
C. {14}
D. {-14}
Answer: D
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Use the circle graph to solve the problem.A survey of the 3372 vehicles on the campus of State University yielded the following circle graph.
What percent of the vehicles are hatchbacks?
A. 7% B. 35% C. 28% D. 118%
Perform the indicated operation. Write the result in the form a + bi.(3 + 6i) - (-9 + i)
A. 12 - 5i B. -12 - 5i C. 12 + 5i D. -6 + 7i
Solve the problem.Suppose a cost-benefit model is given by 
where y is the cost in thousands of dollars for removing x percent of a given pollutant. Find the cost of removing 40% to the nearest dollar.
A. $6500 B. $4333 C. $666 D. $2600
Write interval notation for the following. Then graph the interval on a number line.The set of all numbers x such that -4 < x < 4
A. (4, ?)
B. [-4, 4]
C. (-?, -4)
D. (-4, 4)