Blue, Inc. includes the following account among its trade receivables. Hopkins Co. 1/1 Balance forward 686 1/28 Cash (#1710) 1,078 1/20 Invoice #1710 1,078 4/2 Cash (#2116) 1,323 3/14 Invoice #2116 1,323 4/10 Cash (1/1 Balance) 151 4/12 Invoice #2412 1.674 4/30 Cash (#2412) 980 915 Invoice #3614 482 9/20 Cash (#3614 and part of #2412) 776 10/17 Invoice #4912 841 10/31 Cash (#4912) 841 11/18 Invoice #5681 1.960 12/1 Cash (#5681) 1,225 12/20 Invoice #6347 784 12/29 Cash (#6347) 784 Age the balance