Evaluate the radical expression if it is a real number. Use a calculator to approximate irrational numbers to the nearest hundredth. If the expression is not a real number, so state.
A. 
B. 
C. 
D. not a real number
Answer: C
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Solve the problem.If a parking ramp attendant can wait on 5 vehicles per minute, and vehicles are leaving the ramp at x vehicles per minute, then the average wait in minutes for a car trying to exit is given by 
Solve the inequality 
to determine the exit rates x that would result in average wait times between 4 and 9 minutes.
A. 4.8 ? x ? 4.9 B. 4.7 ? x ? 5.0 C. 0.7 ? x ? 1.5 D. x ? 4.9 or x ? 4.8
For the quadratic function, tell whether the graph opens up or down and whether the graph is wider, narrower, or the same shape as the graph of 
f(x) = 3x2 - 5
A. Up; wider B. Down; wider C. Down; narrower D. Up; narrower
Decide whether or not the equation defines y as a function of x.y = 
A. Yes B. No
Find the first four terms of the sequence.an = 2 ? an-1; a1 = -3
A. 0, 2, -6, -4 B. -3, -6, -4, -2 C. -6, -12, -24, -48 D. -3, -6, -12, -24