document.write( "Question 1140304: hire tool fim finds that their net return from hiring tools is decreasing by 10% per annum.if their net gain on a certain tool this year is £400.find the possible total of all future profits from this tool. \n" ); document.write( "
Algebra.Com's Answer #760817 by Boreal(15235)\"\" \"About 
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the sum of this geometric series with |r|<1 (0.9) is 400/(1-r)=400/.1= 4000 pounds. \n" ); document.write( "
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