Solve the problem.A reservation clerk worked 15.3 hours one day. She spent twice as much time entering new reservations as she did verifying old ones and one and a half as much time calling to confirm reservations as verifying old ones. How much time did she spend entering new reservations?
A. 13.6 hours
B. 3.4 hours
C. 5.1 hours
D. 6.8 hours
Answer: D
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Sketch the surface z = f(x,y).f(x, y) = - 
A. 
B. 
C. 
D. 
Determine whether the system is consistent or inconsistent and whether the equations are dependent or independent.2x + 3y = 115x + 6y = 14
A. Inconsistent; dependent B. Consistent; independent C. Inconsistent; independent D. Consistent; dependent
Form a polynomial whose zeros and degree are given. Use a leading coefficient of 1. Zeros: -5, -4, 1, 3; degree 4
A. x4 - 5x3 - 13x2 + 53x + 60 B. x4 + 5x3 - 13x2 - 53x + 60 C. x4 + 5x3 - 13x2 + 60x + 60 D. x4 + 23x2 + 60
Solve the problem.The number of men dying of AIDS (in thousands) since 1987 is modeled by 
where x represents the number of years after 1987. Use this model to predict the number of AIDS deaths among men in 1994. Express answer rounded to the nearest hundred men.
A. 26,000 men B. 25,800 men C. 36,900 men D. 37,000 men