Convert the units using unit fractions.6 days = 
hr
A. 72
B. 144
C. 42
D. 360
Answer: B
Mathematics
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Find the composite function for the given functions and state the domain. g ? f for f(x) = 
and g(x) = 3x + 7
A. x + 14
B. x
C. 3x + 14
D. x - 
Mathematics
Solve the problem.The revenue achieved by selling x graphing calculators is figured to be 
dollars. The cost of each calculator is 
How many graphing calculators must be sold to make a profit (revenue - cost) of at least $630.00?
A. {x ? 30 < x < 42} B. {x ? 31 < x < 41} C. {x ? 39 < x < 51} D. {x ? 32 < x < 40}
Mathematics
Factor the sum or difference of two cubes.125y3 - 1
A. (125y - 1)(y2 + 5y + 1) B. (5y + 1)(25y2 - 5y + 1) C. (5y - 1)(25y2 + 1) D. (5y - 1)(25y2 + 5y + 1)
Mathematics
Solve the inequality.
< x
A. (4, 6) B. (6, ?) C. (-?, 4) or (6, ?) D. (0, 4) or (6, ?)
Mathematics