Simplify the expression.z - {3z + [5z - (8z - 3) + 6]}
A. z - 9
B. -z - 9
C. 12z - 3
D. z - 3
Answer: A
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Match the surface show below to the graph of its level curves.
A. 
B. 
C. 
D. 
Solve the problem.A landscaping company sells 30-pound bags of top soil. The actual weight x of a bag, however, may differ from the advertised weight by as much as 0.5 pound. The actual weight of the bag of topsoil, x, can be described by the inequality 
Give the solution of the inequality in interval notation.
A. (-?, 29.5] ? [30.5, ?) B. [-29.5, 30.5] C. (29.5, 30.5) D. [29.5, 30.5]
Write as Decimal Number.Two and sixteen hundredths
A. 2.16 B. 2.016 C. 216 D. 2.0016
Solve the special system by substitution. If the system is dependent, write the solution using set-builder notation with the common line expressed in slope-intercept form.
A. (0, 10) B. ? C. {(x, y)|y = -3x + 10} D. {(x, y)|y = 3x + 10}