Decide whether the statement is always true, sometimes true, or never true.The difference between a positive number and a negative number is negative.
A. Never true
B. Always true
C. Sometimes true
Answer: C
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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. 
How many cyclists participated in 2007?
A. 20 cyclists B. 85 cyclists C. 90 cyclists D. 120 cyclists
Decide what number must be added to the binomial to make a perfect square trinomial.x2 + 14x
A. 98 B. 7 C. 49 D. 25
Find the extreme values of the function subject to the given constraint.
A. Maximum: 6 at 
minimum: 3 at 
B. Maximum: 6 at 
minimum: -3 at 
C. Maximum: 9 at 
minimum: 3 at 
D. Maximum: 11 at (6, 3, 2), (6, 2, 3), (3, 2, 6), (3, 6, 2), (2, 3, 6), (2, 6, 3); minimum: 1 at 
Solve the problem.Suppose you buy 1 ticket for $1 out of a lottery of 1,000 tickets where the prize for the one winning ticket is to be $500. What are your expected winnings?
A. -$0.40 B. $0.00 C. -$1.00 D. -$0.50