exam Maths Puzzle Numerical Ability

Write the equation of the line what has y- intercept (0,5) and its
perpendicular to the line with the equation y=3x+1

Please help me solve this

Thanks

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exam Other Question

Please help me solve this logarithm problem.

log base 1/6(x^2+x)-log base 1/6(x^2-x)= -1

I know since the bases are the same at the first of the problem I can condense the pr Hello, I need help with this problem and simplyfying my answer as much as possible. Thank you!!

x^2+2x-15
_________
x^2-9
_________
x^2+6x+5
_________
x^2+4x+3