book Maths Puzzle Numerical Ability

Find the length of a rectangle meeting the specified conditions: The perimeter is 210 feet and the length is 110 percent of the width. You have to put ft after your answer

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book Other Question
Irma invested some money a 7% and $100 less than that at 8%. Her total interest was $58. How muc did she invest at 7%, rounded to the nearest dollar? how you divide decimal numbers?