Solve the problem.Determine whether the ordered triple (-3, -1, 4) is a solution of the system of equations.2x - 2y - 3z = -164x - 3y + 3z = 3 x + y - 5z = -24
A. No
B. Yes
Answer: B
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Solve the inequality. Give the solution set in both interval and graph forms.-10a + 12 > -11a + 10
A. (22, ?)
B. (-2, ?)
C. (-?, 22)
D. (-?, -2)
Simplify the expression. Assume that all variables are positive when they appear.10
? 11
A. 110
B. 110
? 
C. 110
D. 21
Solve the problem.Suppose a cost-benefit model is given by 
where C is the cost in thousands of dollars for removing p percent of a given pollutant. Find C(90) to the nearest dollar and interpret it.
A. $5800; It will cost $5800 to remove 0.90% of the pollutant. B. $5220; It will cost $5220 to remove 0.90% of the pollutant. C. $52,200; It will cost $52,200 to remove 90% of the pollutant. D. $9000; It will cost $9000 to remove 90% of the pollutant.
Write the inequality in interval notation.
A. [-2, ?) B. (-?, 3] C. [3, ?) D. (-?, -2]