Question 1208483
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My first step is to prepare the numbers in the form convenient for calculations.


2 3/8% = {{{(1/100)*((2*8+3)/8)}}} = {{{(1/100)*(19/8)}}} = 0.02375.


Therefore, 


    how much rain fall this year = 25.68 - 0.02375*25.68 = use your calculator = 25.0701 inches.   <U>ANSWER</U>
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Solved.


You may round it in other way as you want.