Solve the problem.The profit made when t units are sold, t > 0, is given by 
Determine the number of units to be sold in order for P > 0 (a profit is made).
A. 20 < t < 14
B. t = 34
C. t > 20 or t < 14
D. t = 20 or t = 14
Answer: C
Mathematics
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Solve using a system of linear equations in three variables.The Family Arts Center charges $23 for adults, $18 for senior citizens, and $9 for children under 12 for their live performances on Sunday afternoon. This past Sunday, the paid revenue was 
for 874 tickets sold. There were 42 more children than adults. How many children attended?
A. 240 children B. 458 children C. 328 children D. 296 children
Mathematics
Solve the equation by factoring.15x3 + 90x2 + 120x = 0
A. {-4, -2}
B. 
C. {0, -4, -2}
D. {0, 4, 2}
Mathematics
Factor out the largest common factor.3n2 + 6n - 24
A. 3(n2 + 2n - 8) B. 3(-n2 - 2n + 8) C. 3n(n - 6) D. 3(n2 + 2n - 24)
Mathematics
Divide.
A. 54 B. 5.4 C. 53 D. 5.3
Mathematics