Find all numbers for which the rational expression is not defined.
A. None
B. a = 0
C. a = -4
D. a = 4
Answer: D
Mathematics
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Evaluate the expression.71
A. 7
B. 1
C. -7
D. 
Mathematics
Answer the question. Give your answer in simplest form.A 6-minute egg is cooked for what fraction of an hour? (1 hour = 60 min)
A. 
hr
B. 
hr
C. 
hr
D. 
hr
Mathematics
Find the product or quotient.
÷ 
A. x - y + 7
B. -1
C. 
D. 
Mathematics
The following pictograph shows the number of bicyclists who participated in the Labor Day weekend bicycle race for the years 2003-2009. Use the graph to answer the question. 
In what years was there an increase in the number of cyclists who participated in the race?
A. 2003, 2005, 2009 B. 2004, 2005, 2009 C. 2005, 2008, 2009 D. 2004, 2006, 2007
Mathematics