Solve the problem.A wheel is rotating at 3 radians/sec, and the wheel has a 70-inch diameter. To the nearest foot per minute, what is the velocity of a point on the rim?
A. 530 ft/min
B. 520 ft/min
C. 515 ft/min
D. 525 ft/min
Answer: D
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Solve the problem.John owns a hot dog stand. His profit, in dollars, is given by the function 
where x is the number of hot dogs sold. What is the most he can earn?
A. $99 B. $49 C. $120 D. $106
Match the given graph with its equation.
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Solve the problem.The formula C = 0.5x + 16 represents the estimated future cost of yearly attendance at State University, where C is the cost in thousands of dollars x years after 2002. Use a compound inequality to determine when the attendance costs will range from 19 to 21 thousand dollars.
A. From 2007 to 2011 B. From 2009 to 2013 C. From 2008 to 2012 D. From 2009 to 2011
Solve.Jeff takes 5 hr longer to build a fence than it takes Bill. When they work together, it takes them 6 hours. How long would it take Bill to do the job alone?
A. 11 hr B. 9 hours C. 12 hours D. 10 hours