Find the average rate of change of the function from x1 = 1 to x2 = 3.
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A. The average rate of change from x1 = 1 to x2 = 3 is 19.
B. The average rate of change from x1 = 1 to x2 = 3 is -20.
C. The average rate of change from x1 = 1 to x2 = 3 is 8.
D. The average rate of change from x1 = 1 to x2 = 3 is -14.
E. The average rate of change from x1 = 1 to x2 = 3 is 14.
Answer: B
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A. 
B. 
C. 
D. 
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A. 
B. -7
C. 7
D. - 
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During one performance of a local arts council's presentation of Fiddler on the Roof, the box office sold 239 tickets and collected $1389. If adult tickets sold for $10 and children's tickets sold for $3, how many of each type of ticket were sold?
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