Solve.A circular fountain has a statue in its center, 3 m from the edge. What is the distance around the fountain? Round results to the nearest tenth of a unit.
A. 18.8 m
B. 9.0 m
C. 16.8 m
D. 9.4 m
Answer: A
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The graph below shows the approximate annual percentage growth rate in world population for the years 1960 through 2010. Data is estimated by the UN Census Bureau.Annual Growth Rate (Percentage) 
Use the graph to answer the question.In which year(s), if any, during the period 1960-2010 is world population constant?
A. 1969-1971 B. 1962-1964, 1969-1971, 1975-1980 C. 1962-1964 D. None
Simplify using the laws of exponents.(5m4z4)(2m4z2)
A. 10m8z6 B. 10mz6 C. 10m8z D. 10mz8
Solve the equation by factoring.x2 - 25 = 24x
A. {1, -25} B. {-5, 5} C. {-5, -5} D. {-1, 25}
Solve the problem.A balloon (in the shape of a sphere) is being inflated. The radius is increasing at a rate of 8 cm per second. Find a function, r(t), for the radius in terms of t. Find a function, V(r), for the volume of the balloon in terms of r. Find (V ? r)(t).
A. (V ? r)(t) = 
B. (V ? r)(t) = 
C. (V ? r)(t) = 
D. (V ? r)(t) = 