exam Maths Puzzle Numerical Ability

square root of -25

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exam Other Question

3n-40=1/2n+35 If a roof of a home is 7m from the peak to eave and the attic space is 3cm high at the peak, how long does each of the pieces of insulation need to be? Round to the nearest tenth.

Any help on this word problem would be great, thank you so much