Perform the operations. 
A. 19
B. 16
C. 144
D. 17
Answer: D
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A desalination process is removing salt from a container of sea water. The amount of salt, in kilograms, remaining t hours after the cleaning process began is given by
?
.
?
How much of the salt is removed from time 
to time 
?
?
A. 5.73 kilograms
B. 4.17 kilograms
C. 9.70 kilograms
D. 6.02 kilograms
Solve the problem.Which of the following apportionment methods can produce the Population paradox?
A. Adams's method B. Hamilton's method C. Jefferson's method D. Webster's method E. none of these
Find the median.The normal monthly precipitation (in inches) for August is listed for 20 different U.S. cities. Find the median of the data. Round to the nearest hundredth.3.5 1.6 2.4 3.7 4.13.9 1.0 3.6 4.2 3.43.7 2.2 1.5 4.2 3.42.7 0.4 3.7 2.0 3.6
A. 3.45 in. B. 2.94 in. C. 3.50 in. D. 3.40 in.
Solve the problem.Biologists banded five out of every twenty wild ducks. What percent were banded?
A. 25% B. 75% C. 5% D. 15%