For the given functions f and g, find the requested function and state its domain.f(x) = 
; g(x) = 
Find f ? g.
A. (f ? g)(x) = 
; (-?, 0) ? (0, ?)
B. (f ? g)(x) = 
; [-7, 0) ? (0, ?)
C. (f ? g)(x) = 
; [-7, 0) ? (0, ?)
D. (f ? g)(x) = 
; [0, 7) ? (7, ?)
Answer: B
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Solve the problem. Round your answer to 2 decimal places when necessary.The overall U.S. death rate for 60 year-olds is approximately 12 deaths per 1000 people. Suppose that a life insurance company insures 2000 60-year-old people. The cost of the premium is $760 per year, and the death benefit is $55,000. What is the expected profit or loss for the insurance company?
A. $200,000 profit B. $1,320,000 loss C. $310,000 profit D. $181,760 profit
Write the fraction as a decimal. If the decimal is a repeating decimal, write using the bar notation and then round to the nearest hundredth. 
A. 0.06
B. 0.
? 0.07
C. 0.0
? 0.07
D. 0.
? 0.07
Solve.Madison, Lionel, and Steven enter a 51.4-mile bicycle team relay race. They complete the course in 2.27 hours. What was their average speed on the course? (Round to the nearest tenth.)
A. 2.3 mi/hr B. 0.0 mi/hr C. 22.6 mi/hr D. 0.4 mi/hr
If the following defines a one-to-one function, find its inverse. If not, write "Not one-to-one."f(x) = 
A. Not one-to-one
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 