exam Maths Puzzle Numerical Ability

The perimeter of a rectangle is 108 inches. The length exceeds the width by 8 inches. Find the length and the width.
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exam Other Question

Simplify the rational expression:
x2 – 6x – 7
----------------
x2 – 1
The price of an item is given by p = 2x^2 - 100. Find the
polynomial that represents the revenue generated from the sale of x items