Solve the equation. Make sure you check your final solution(s).
- 
= 7
A. x = 14
B. x = 56
C. x = 16
D. x = 
Answer: D
Mathematics
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Simplify. Assume that all variables represent nonnegative numbers.
A. 2x4
B. 9x8
C. 162x4
D. 9x4
Mathematics
Simplify. Assume that variables can represent any real number.
A. 6
k3q4
B. 6
k2
q8
C. 6
k2
q4
D. 6k3q4 
Mathematics
Evaluate. 82
A. 64 B. 256 C. 16 D. 81
Mathematics
Answer the question or solve the problem.If a ? b, is it always true that a - 7 ? b - 7? Explain.
What will be an ideal response?
Mathematics