Solve the problem.The table below describes the smoking habits of a group of asthma sufferers.
If one of the 990 people is randomly selected, find the probability that the person is a man or a heavy smoker. Round to the nearest thousandth.
A. 0.564
B. 0.486
C. 0.493
D. 0.528
Answer: D
Mathematics
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Find the requested angle.Supplement of 90.5°
A. 90.5° B. 89.5° C. -0.5° D. 181°
Mathematics
The number of Americans aged 45 to 54 (which stood at 25 million at the beginning of 1990) grew at the rate of
?
?
million people/year, 
years from the beginning of 1990. How many Americans aged 45 to 54 were added to the population between 1990 and the year 1999? Give your answer to one decimal place.
?
A. 28.0 million
B. 26.5 million
C. 27.7 million
D. 28.5 million
Mathematics
Solve the system, if possible.
?
?
A. 
B. 
C. 
D. 
E. no solution; inconsistent system
Mathematics
Solve.22 is 5% of what?
A. 44 B. 440 C. 4400 D. 110
Mathematics