Convert the units using two or three unit fractions.7 hr = 
sec
A. 6300
B. 420
C. 12,600
D. 25,200
Answer: D
Mathematics
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Solve the problem.Crafty Bill's Cool Car Sales opened as a used car sales lot in 2006. The graph shows the number of cars sold as a function of time. What is the domain of this function if we consider only the indicated points? 
A. {2005, 2011} B. {2006, 2007, 2008, 2009, 2010} C. {2006, 2010} D. {2005, 2006, 2007, 2008, 2009, 2010, 2011}
Mathematics
Simplify.(64 - 18) ? [(80 + 10 ÷ 5) - (6 ? 6 - 3 ? 3)]
A. 2494 B. 2530 C. 2587 D. 2630
Mathematics
Find the domain of the function.y = 
A. (-?, ?)
B. all real numbers except 20
C. (
, ?)
D. [-?, 20]
Mathematics
Determine algebraically whether the function is even, odd, or neither.f(x) = 3x3
A. even B. odd C. neither
Mathematics