Given are the first three terms of a sequence that is geometric. Find a1 and r.3, -9, 27
A. a1 = 3; r = 1
B. a1 = 3; r = -3
C. a1 = 3; r = -12
D. a1 = 3; r = 3
Answer: B
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A. 
, 
B. 
, 
C. 
D. 
Answer the question.What does the digit 7 mean in the number 189,247?
A. 7 tens B. 7 ones C. 7 hundreds D. 7 thousands
Solve the problem.If the voltage, V, in an electric circuit is held constant, the current, I, is inversely proportional to the resistance, R. If the current is 150 milliamperes (mA) when the resistance is 5 ohms, find the current when the resistance is 15 ohms.
A. 250 mA B. 447 mA C. 50 mA D. 450 mA
Solve the problem.Randy invested his inheritance in an account that paid 
interest, compounded continuously. After 6 years, he found that he now had 
. What was the original amount of his inheritance?
A. $35,062.00 B. $36,062 C. $37,062.00 D. $23,800.92