exam Maths Puzzle Numerical Ability

with the exponet of 5 radical sign over 125/.55 show process using logarithms (sorry index of 5)

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exam Other Question

two angels are suplementary, if the larger angle is 15� more than twice the smallest angle, find the neasure of both angles. Factor completely:
16x^2 + 24xy + 9y^2

I am trying to figure this out, but can not remember the steps in order to do so, could someone help me out please? Thank you