Solve the problem.Tony bought some stock for $680. If each share had cost $6 less he could have bought 3 more shares for the same $680. How many shares of stock did he buy?
A. 12 shares
B. 14 shares
C. 19 shares
D. 17 shares
Answer: D
Mathematics
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Evaluate.
when x = 6 and y = 7
A. 19 B. 8 C. 80 D. 20
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Determine if the series 
defined by the formula converges or diverges.a1 = 
, an+1 = (an)n+1
A. Diverges B. Converges
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Solve the problem.Suppose a cost-benefit model is given by y = 
, where y is the cost in thousands of dollars for removing x percent of a given pollutant. Find the cost of removing 80% to the nearest dollar.
A. $9500 B. $38,000 C. $4000 D. $7600
Mathematics
Graph the line through the given point with the given slope.(4, 4), m = 
A. 
B. 
C. 
D. 
Mathematics