Solve the problem.A promotional deal for long distance phone service charges a $15 basic fee plus $0.05 per minute for all calls. If Joe's phone bill was $46 under this promotional deal, how many minutes of phone calls did he make? Round to the nearest integer, if necessary.
A. 1220 min
B. 6 min
C. 2 min
D. 620 min
Answer: D
Mathematics
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< 10-2
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Find the derivative of y with respect to the appropriate variable.y = csch-1 
?
A. 
B. 
C. 
D. 
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Factor.45 - 4x - x2
A. (x - 9)(x - 5) B. (x + 9)(x - 5) C. (-x - 9)(x - 5) D. (-x - 5)(x - 9)
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Perform the indicated operation and simplify.
+ 
A. 
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C. 6m + 5
D. 
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