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Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point

Benjamin is making bow ties. how many 1/2yards lomg bow ties can he make if he has 18 feet of fabric?