Solve the equation. Give the exact solution or solutions.log4 (x - 4) + log4 (x - 4) = 1
A. {6}
B. {-
, 
}
C. {-6, 6}
D. {
}
Answer: A
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Solve the problem.Sergio's internet provider charges its customers $15 per month plus 4¢ per minute of on-line usage. Sergio received a bill from the provider covering a 
period and was charged a total of $101.00. How many minutes did he spend on-line during that period? (Round to the nearest whole minute, if necessary.)
A. The number of minutes is 65. B. The number of minutes is 1815. C. The number of minutes is 650. D. The number of minutes is 1565.
The function Y2 is defined as Y1 + k for some real number k. Based upon the given information about Y1 and Y2, find k. 
A. 12 B. -25 C. 28 D. -15
Determine algebraically whether the function is even, odd, or neither.f(x) = 
A. even B. odd C. neither
Find an equation for the ellipse.Foci at (0, ±4); a = 8
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1