Solve the problem.A study of consumer smoking habits includes 180 people in the 18-22 age bracket (60 of whom smoke), 130 people in the 23-30 age bracket (33 of whom smoke), and 100 people in the 31-40 age bracket (29 of whom smoke). If one person is randomly selected from this sample, find the probability of getting someone who is age 18-22 or does not smoke.
A. 1.141
B. 0.667
C. 0.849
D. 0.293
Answer: C
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Perform the indicated operation(s). Simplify if possible.- 
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For the following equation, graph y = f1(x) and y = f2(x) on the same screen on your calculator. From the graphs, make a conjecture as to whether the equation is an identity. If so, prove your conjecture.cos 2x = sin 2x tan x
What will be an ideal response?
Graph the function with a graphing utility.y = -x2 + 2x - 5
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B. 
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Solve the problem.The bar graph below shows the percent of income spent on leisure activities in various countries of the world. List all countries in the graph in which less than 15% of household income is spent, on average, for leisure activities.
A. China, Australia B. China, Australia, France, Germany C. Britain, Japan, USA D. China, Australia, France