Solve the problem.In a student government election, 5 seniors, 2 juniors, and 
sophomores are running for election. Students elect four at-large senators. In how many ways can this be done?
A. 151,200
B. 5040
C. 30
D. 210
Answer: D
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Find the square root.
A. 36
B. 6
C. 1296
D. 
Write a system of equations for the problem, and then solve the system.Two trains start from towns 572miles apart and travel toward each other on parallel tracks. They pass each other 5.5 hours later. If one train travels 18 mph faster than the other, find the speed of each train.
A. 63 mph; 41 mph B. 61 mph; 43mph C. 51 mph; 53 mph D. 56 mph; 48 mph
Find the limit.
?
?
A. 
B. 
C. 
D. 
E. 
Use synthetic division to find the quotient and the remainder when the first polynomial is divided by the second polynomial. 2x5 - x4 + 3x2 - x + 5; x - 1
A. quotient: 2x4 - 3x3 - x; remainder: 6 B. quotient: 2x4 + x3 - x2 + 2x + 1; remainder: 6 C. quotient: 2x4 + x3 + 4x2 + 3x; remainder: 8 D. quotient: 2x4 + x3 + x2 + 4x + 3; remainder: 8