The terms of payment for $3245 invoice, dated October 25th, are 1½/15, n/45. What amount will settle the invoice on November 10th.
The 2 terms of payments are:1.5/15=10%
Since 1 - 10%=90%=n/45, n=90% X 45=40.5 so that 40.5/45=90%
Therefore the 1st payment is 10%=$3,245 X 10%=$324.50
The 2nd payment is 90% of $3245 X 90% =$2,920.5
+598 
