exam Maths Puzzle Numerical Ability

The length of a rectangle is 7 in. more than twice its width. If the perimeter of the rectangle is 32 in., find the width of the rectangle.

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Solve x squar+3x+3=0 by using the Quadratic Formula (eg. 6, I)

I use College Algebra Book ISBN-13 978-0-618-77629-0
A 14 foot ladder leans against the side of a house. How high does the ladder reach if the distance between the bottom of the ladder and the house is 11 feet less then the distance between the top of the ladder and the ground.