Evaluate. Assume that all variables represent positive numbers. 
A. 2s
B. s
C. -s
D. 
Answer: B
Mathematics
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Find the GCD for the given numbers by an appropriate method.216 and 324
A. 6 B. 36 C. 648 D. 108
Mathematics
Simplify. Express your answer with positive exponents. Assume that all variables are nonzero.
-2
A. 
B. 
C. 
D. 
Mathematics
Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round to four decimal places.log5
A. -0.6826 B. 0.2218 C. -1.1761 D. -1.4650
Mathematics
Solve the problem.Five friends drove at an average rate of 50 miles per hour to a weekend retreat. On the way home, they took the same route but averaged 70 miles per hour. What was the distance between home and the retreat if the round trip took 10 hours?
A. 291
mi
B. 1750 mi
C. 583
mi
D. 5
mi
Mathematics