exam Maths Puzzle Numerical Ability

write the slope intercept form for an equation of the line perpendicular to the graph of the given equation and passing through the given point?
5y=-x+1, (2,-5)

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exam Other Question

3log_5(3x+1)-2log_5(2x-1)-log_3x The cost per mont of making n number of wooden toys is C=3n+30. The income from selling n toys much the cpmpany make to get a profit (I greater than C).