exam Maths Puzzle Numerical Ability

find the LCD of
1 1
------- + ------
1 - x^2 x - 1

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exam Other Question

Danielle has nickels, dimes and quarters. She has a total of $33.60. She has four times as many quarters as dimes and one-half as many dimes as nickels. how many of each coin does she have?
The length of a rectangle is four times the width. The area is 144 in.^2. Find the length and the width. Show your work.