exam Maths Puzzle Numerical Ability

Express as a sum of logarithms:

log 0.2x

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exam Other Question

express (3+H)/(1+2H) in the form a+bH where a and b are real numbers.
i assume i have to get rid of the denominator, but its not an equation just an expression and I am awful with the perimeter of a rectangle is 82 yards. The width is 15 yards less than the length. Find the lenght and the width of the rectangle.