exam Maths Puzzle Numerical Ability

HOW DO I SOLVE FOR A?
((45A*32B)/920M-200))+(45A-32B)/40M=50M/75B

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exam Other Question

Simplify

3x/x + y - 2y/x A piece of art is in the shape of an equilateral triangle with sides of 7in. Find the area of the piece of art. Round your answer to the nearest tenth.

I drew a triangle but fo