Solve the inequality. Write the solution set in interval notation.
- 
? 
+ 3
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Evaluate the given expression.
A. 110
B. 
C. 
D. 
Mathematics
Solve the linear inequality. Graph the solution set on a number line, and express the solution using interval notation.-9x - 21 ? -3(2x + 9)
A. [2, ?)
B. (-?, 2)
C. [2, ?)
D. (-?, 2]
Mathematics
Find the determinant of the matrix.
?
?
A. 
B. 0
C. 
D. 10
E. 
Mathematics
A regional music competition awarded 28 ribbons. The number of purple ribbons awarded was one less than the number of green ribbons. The number of red ribbons was two more than the number of green ribbons. How many of each kind of ribbon was awarded?
a. 9 green, 11 purple, and 8 red b. 8 green, 11 purple, and 9 red c. 9 green, 8 purple, and 11 red d. 10 green, 7 purple, and 11 red
Mathematics