Simplify the expression. If any variables exist, assume that they are positive.
+ 
A. 4
B. 16
C. 8
D. 4
Answer: B
Mathematics
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Combine. Simplify the answer.
+ 
- 
A. 
B. 
C. - 
D. 
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 42 ? 45
A. 262,144 B. 16,777,216 C. 16,384 D. 1,048,576
Mathematics
Solve the problem.Evaluate 
A. 
B. 
C. 
D. 
Mathematics
Multiply the monomials.
(-32xy)
A. -20x4y5 B. 20x3y4 C. 20x4y5 D. -20x3y4
Mathematics