Perform the indicated operation.
- 
A. 3
B. 3x
C. 
D. 
Answer: A
Mathematics
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Find the sum of the interior angles of a pentagon. ?
A. ?108? B. 216? C. 600? D. ?540? E. ?None of the above.
Mathematics
Perform the operation and give the answer in Hindu-Arabic form. src="https://sciemce.com/media/4/ppg__ttt0612191108__f1q181g6.jpg" alt="" style="vertical-align: 0.0px;" height="19" width="17" />
+ 
A. 1213
B. 1231
C. 2131
D. 2113
Mathematics
Evaluate the expression or indicate that the root is not a real number.
A. 14,641
B. 11
C. 
D. Not a real number
Mathematics
Solve the problem.A chemical solution contains 4% lead. How much lead is in 
of solution?
A. 0.4 mL B. 25 mL C. 2.5 mL D. 0.04 mL
Mathematics