For a concert event, there are $30 reserved seat tickets and $20 general admission tickets. There are 2000 reserved seats available, and fire regulations limit the number of paid ticket holders to 3000. The promoter must take in at least $65,000 in ticket sales. Find and graph a system of inequalities describing the different numbers of tickets that can be sold.
?
A. 
?
B.
?
C. ?
D.
?
E.
?
Answer: E
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Find the median for the given sample data.A store manager kept track of the number of newspapers sold each week over a seven-week period. The results are shown below.28, 15, 204, 194, 288, 246, 237Find the median number of newspapers sold.
A. 204 B. 194 C. 173 D. 237
Find the gradient field of the function.f(x, y, z) = 
A. ?f = 
i + 
j + 
k
B. ?f = 
(x2 + y2 + z2)i + 
j + 
k
C. ?f = 
i + 2yj + 2zk
D. ?f = 
i + 
j + 
k
Completely factor the polynomial or state that the polynomial is prime.2x2 - 50
A. 2(x + 5)(x - 5) B. prime C. 2(x + 5)2 D. 2(x - 5)2
Solve the problem.The distance d in miles that can be seen on the surface of the ocean is given by 
where h is the height in feet above the surface. How high (to the nearest foot) would a platform have to be to see a distance of 
A. 272 B. 408 C. 121 D. 110