Solve.Amy can clean the house in 7 hours. When she works together with Tom, the job takes 4 hours. How long would it take Tom, working by himself, to clean the house?
A. 9
hr
B. 10
hr
C. 3 hr
D. 9
hr
Answer: D
Mathematics
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A. Sometimes B. Always C. Never
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Provide an appropriate response.If X has density function f(x) = 
find k.
A. 12
B. 2
C. 
D. 24
E. 
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Use the figure to solve the inequality.
f(x) ? g(x)
A. {x|x < -1 or x > 3}; (-?, -1) or (3, ?) B. {x|-1 < x < 3}; (-1, 3) C. {x|x ? -1 or x ? 3}; (-?, -1] or [3, ?) D. {x|-1 ? x ? 3}; [-1, 3]
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Rewrite the logarithmic equation 
in exponential form.
a. 
b. 
c. 
d. 
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