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Length and area conversion formulae 1 foot = 0.3048 metre 1 inch = 2.54 centimetre 1 mile = 1.609344 kilometre 1 yard = 0.9144 metre 1 acre = 0.404685 hectare 1 sq. foot = 0.09290304 sq. metre 1 acre = 43,560 sq. ft Valuation formulae Where i = the interest rate; and n = period: YP perpetuity = 1 / i Present Value...

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