exam Maths Puzzle Numerical Ability

The perimeter of the rectangle is 190 inches. The length exceeeds the width by 53 inches. Find the length and the width.

Can someone please help with this one please? The perimeter is the 190 diveded by 4? Is that the way to start or not?

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exam Other Question
For this question, we must find the revenue from the sale of x items given by R=50x. Does this ask to graph the equation only or do I need to solve this for x. And if so, how do I do it? x/x^2+4x-21-x/x^2-49