Find the domain of f(x).f(x) = ?28 - x?
A. ? the set of all real numbers
B. {x? x is a real number and x ? -28}
C. {x? x is a real number and x ? 28}
D. {x? x < 28}
Answer: A
Mathematics
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A. 
B. 
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D. 
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Convert the weight as indicated.18,000 pounds to tons
A. 9 T
B. 8 T
C. 10 T
D. 9
T
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