What is the slope of the line on the graph?

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Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

What is the multiple zero and multiplicity of f(x) = (x ? 3)(x ? 3)(x + 5)? multiple zero is 3; multiplicity is 2 multiple zero is 5; multiplicity is 1 multiple zero is ? 5; multiplicity is 1 multiple zero is ? 3; multiplicity is 2

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost