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Math GKT exam review questions well solved. Mrs. Green was told that she could reduce her heating expenses at least 20% by increasing the insulation of her house. After doing so, she found her average monthly bill for oil decreased from $80 to $60. What
Math GKT exam review questions well solved. 
 
Mrs. Green was told that she could reduce her heating expenses at least 20% by increasing the insulation of her house. After doing so, she found her average monthly bill for oil decreased from $80 to $60. What fractional part of her former heating expenses did Mrs. Green save by adding insulation. - n 
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 A woman buys eight items at the grocery store. The lightest item weighs 6 ounces and the heaviest item weighs 14 ounces. The woman...