Solve.Martha can rake the leaves in her yard in 4 hours. Her younger brother can do the job in 7 hours. How long will it take them to do the job if they work together?
A. 
hr
B. 7 hr
C. 
hr
D. 
hr
Answer: C
Mathematics
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Write an inequality involving absolute value that describes the graph shown.
A. 
? 3
B. 
? 0
C. 
? 0
D. 
? 3
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Write the augmented matrix for the system.
A. 
B. 
C. 
D. 
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Find the power function that the graph of f resembles for large values of |x|.f(x) = 2x - x3
A. y = x2 B. y = x4 C. y = x3 D. y = -x3
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