Find the mean for the given sample data.Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mean retirement age. 
A. 57.8 years
B. 58.0 years
C. 58.5 years
D. 59.1 years
Answer: D
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Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(9
)(-2
)
A. -18y
B. 7
C. 18x
D. -18
Use the circle graph to solve the problem. Give your answer as a fraction, decimal, and as a percent.The circle graph below shows the majors for 60 college students at Blackwood Community College. What portion of the students are majoring in science?
A. 
; 0.33; 33%
B.
 ; 0.2; 20% |
C.
; 0.4; 4%D.
 ; 0.4; 40% |
The pictograph shows the number of bicyclists who participated in the Labor Day weekend bicycle race for the years indicated. 
In what year(s) was there an increase in the number of cyclists who participated in the race?
A. 2002, 2004, 2005 B. 2003, 2006, 2007 C. 2002, 2003, 2007 D. 2001, 2003, 2007
Find the perimeter of the polygon described. Write any improper fractions as mixed numbers.A regular heptagon; one side is 5
yd
A. P = 35
yd
B. P = 44
yd
C. P = 39
yd
D. P = 37 yd