Solve the problem.The value V, in dollars, of a shopkeeper's inventory software program is given by 
where t is the number of years since the shopkeeper first bought the program. Find the value of the software after 
and 
A. $450, $470, and $350
B. $440, $430, and $350
C. $450, $430, and $110
D. $450, $430, and $350
Answer: D
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Use the graph of a quadratic function to find the solution set of the equation or inequality. For a solution set that involves an interval, use interval notation.-x2 + 6x - 9 < 0
A. ? B. (-?, 3) ? (3, ?) C. (-?, ?) D. x = 3
Solve the equation for x.y = 3 tan 2x - 1
A. x = 
arctan (3y + 3)
B. x = 2 arctan 
C. x = 2 arctan (3y + 3)
D. x = 
arctan 
Find all values of ? in [0°, 360°) that satisfy the equation.sin ? = - 
A. {210°, 330°} B. {150°, 210°} C. {60°, 300°} D. {60°, 120°}
Solve the problem.Within a group of n people, the number of possible handshakes, N, is given by N = 
(n2 - n). At a party, everybody shakes hands with every other person. If the total number of handshakes is 253, how many people are at the party?
A. 22 B. 23 C. 25 D. 24