Evaluate the expression.
A. 3.4
B. 0.4
C. 40.0
D. 4.0
E. 14.3
Answer: D
Mathematics
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Write the phrase as a variable expression. Use x to represent "a number." 63 decreased by a number
A. 63 + x
B. 
C. x - 63
D. 63 - x
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Solve.10x - 25 - x2 < 0
A. (?, 5) B. (-?, 5) ? (5, ?) C. (5, ?) D. (-5, 5)
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Solve the problem.The number of bacteria growing in an incubation culture increases with time according to 
where x is time in days. Find the number of bacteria when x = 0 and x = 4.
A. 6900; 110,400 B. 6900; 55,200 C. 6900; 27,600 D. 13,800; 110,400
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Graph the linear inequality.-2x - 3y ? -6
A. 
B. 
C. 
D. 
Mathematics