Answer the question.Which number can serve as a common denominator for 
and 
?
A. 90
B. 9
C. 19
D. 20
Answer: A
Mathematics
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Solve.
= x + 2
A. -7 B. 8 C. -8 D. 10
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Solve.There are 209 students at a high school, 46 students are freshmen. Write a fraction that describes the number of students that are NOT freshmen.
A. 
B. 
C. 
D. 
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Find the exact function value if it exists.sec (-60°)
A. 2
B. - 
C. 
D. - 
Mathematics
Graph the solution of the system of linear inequalities.
A. 
B. 
C. 
D. 
Mathematics