Find the numbers at which f is continuous. At which numbers is f discontinuous?f(x) = 
A. continuous for all real numbers except x = 5
B. continuous for all real numbers except x = -5, x = 5
C. continuous for all real numbers except x = 0
D. continuous for all real numbers
Answer: D
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Solve the problem.In the weighted voting system 
,
A. P1 and P2 have veto power, P3 is a dummy. B. P1 has veto power, P3 is a dummy. C. all three players have veto power. D. no player has veto power. E. none of these
Solve the problem, using simple interest. Round your answer, as needed.Diego paid $156.35 interest over 
year on a loan for $5300. What interest rate did he pay?
A. 5.9% B. 12.5% C. 12.3% D. 11.8%
Solve the following system by any appropriate method. If there is no real number solution, so state.xy = 90x + y = -19
A. (9, -10), (10, -9) B. (-9, -10), (-10, -9) C. (9, 10), (10, 9) D. (-9, 10), (-10, 9)
Simplify the algebraic expression by collecting and combining like terms.-6a + 5a2 + 9a
A. 3a + 5 B. 3a + 5a2 C. 8a3 D. 3a + 9a2