Solve the inequality. Express your answer using interval notation.x + 7 < 2
A. (-5, ?)
B. (-?, -5)
C. (-?, 9)
D. (-?, 9]
Answer: B
Mathematics
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Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.
3
A. 
B. 
C. 
D. 
Mathematics
Determine whether the given equation is an identity.
= 
+ 4
A. Yes B. No
Mathematics
Solve the compound inequality. Graph the solution set and write the solution in interval notation.x < 4 or x < 8
A. (-?, 4) ? (8, ?)
B. (4, 8)
C. (4, ?)
D. (-?, 8)
Mathematics
Graph. Label any intercepts and determine the slope of the line. If the slope is undefined, state this.x = -7
A. x-intercept: (-7, 0), m: - 
B. x-intercept: (0, -7), m: 0
C. x-intercept: (0, 0), m: -7
D. x-intercept: (-7, 0), m: undefined
Mathematics