Perform the indicated operation.
+ 
A. 3
B. 0
C. 
D. 
Answer: A
Mathematics
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Determine whether the sequence is geometric.3, -9, 27, -81, 243, . . .
A. Geometric B. Not geometric
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Find the least common multiple (LCM) of the list of numbers.18, 16
A. 144 B. 288 C. 2 D. 576
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Solve the equation.- 
a = -3
A. 21 B. -10 C. -11 D. 0
Mathematics
Perform the indicated operation.-2.1 + (-7.7)
A. 9.8 B. 5.6 C. -9.8 D. -5.6
Mathematics