an element with mass 290 grams decays by 13.2% per minute. How much of the element is remaining after 14 minutes, to the nearest 10th of a gram?

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step-by-step explanation:

15: 24

62.5%

step-by-step explanation:

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2