Write the solution set to the inequality in interval notation.x ? 3
A. (-?, 3]
B. (3, ?)
C. (-?, 3)
D. [3, ?)
Answer: D
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Translate the phrase to an algebraic expression.Nine times x
A. 9x
B. 9 - x
C. 
D. 9 + x
Solve the problem.A drill bit used for oil exploration removes rock from a region bounded by y = 1, y = 0.07x5 - 4, and the y-axis, where the units are feet. Find the volume the drill bit sweeps out by revolving about the y-axis.
A. 62 ft3 B. 16 ft3 C. 87 ft3 D. 11 ft3
Solve the problem.John bought a camera that regularly sold for $139.95 at a 25% discount. What was the amount of the discount? Round to the nearest cent.
A. $32.49 B. $43.49 C. $34.74 D. $34.99
Test the equation for symmetry with respect to the specified axis, line, or pole.r = 4 cos ?; the y-axis 
A. May or may not be symmetric about the y-axis B. Symmetric about the y-axis