Identify the open intervals where the function is changing as requested.Increasing
A. (-?, -3), (3, ?)
B. (-?, -3), (0, 3)
C. (-3, 0), (3, ?)
D. (0, 3)
Answer: B
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Perform the operations indicated. Simplify the answer whenever possible.
A. 
B. 
C. 
D. 
Use the given property of multiplication to rewrite each statement. Commutative property: 16 ? 9 = _____
A. 16 ? 9
B. 16 + 9
C. 9 ? 16
D. 9 + 
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
Solve the problem.A restaurant has a capacity of 180 patrons. If the restaurant is 
full, how many patrons are at the restaurant?
A. 45 patrons B. 55 patrons C. 50 patrons D. 10 patrons