Solve the problem.Dan's long-distance phone carrier charges him $3.95 a month for service. In addition, Dan is charged 5 cents a minute for the calls he makes. If his monthly bill is $48.50, how many minutes of calls did he make?

A. 881 minutes
B. 892 minutes
C. 902 minutes
D. 891 minutes


Answer: D

Mathematics

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Multiply the monomial and the polynomial.6x3(-7x6 - 3x2 + 12)

A. -42x6 - 18x2 + 72 B. -42x9 - 18x5 C. -42x9 - 3x2 + 12 D. -42x9 - 18x5 + 72x3

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Solve. Where appropriate, include approximations to the nearest thousandth. If no solution exists, state this.ln (x - 3) + ln (x + 5) = ln 20

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Simplify the expression so that no negative exponents appear in the final result. Assume all variables represent nonzero numbers.-2

A.
B.
C.
D.

Mathematics