Solve the problem.A stack of poles has 21 poles in the bottom row, 20 poles in the next row, and so on, with 10 poles in the top row. How many poles are there in the stack?
A. 160
B. 196
C. 186
D. 176
Answer: C
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150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 65 and standard deviation ? = 10.A score of 85 corresponds to a standardized value of
A. 2. B. 8.5. C. 20. D. -2. E. none of these
Use this graph to answer the question.
MonthWhat were the total sales for 2009?
A. $764,000 B. $582,000 C. $50,000 D. $48,000
Solve.A ball is dropped from a height of 4 m. On each upward bounce the ball returns to 
of its previous height. Find the total distance the ball travels in an upward direction before coming to rest.
A. 3 m B. 12 m C. 28 m D. 15 m
List all numbers from the set that are of the type indicated.
Integers
A. 19, 
B. 19, -12
C. 19
D. 0, -12, 5