exam Maths Puzzle Numerical Ability

Solve the equation.

Square root of 2y+7 +4=y

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exam Other Question

Divide and simplify.
x^3 y^2 . x y^4
_________ ___ _______
x^2-3x-10 . x^2-x-20

thank you. A garden area is 30 ft long and 20 ft wide. A path of uniform width
is set around the edge. If the remaining garden area is 400 ft2, what is the width of
the path?