Danica Patrick, Inc. includes the following account among its trade receivables.

Hopkins Co.
1/1		Balance forward		796	1/28		Cash (#1710)		1,159
1/20		Invoice #1710		1,159	4/2		Cash (#2116)		1,460
3/14		Invoice #2116		1,460	4/10		Cash (1/1 Balance)		299
4/12		Invoice #2412		2,067	4/30		Cash (#2412)		1,091
9/5		Invoice #3614		540	9/20		Cash (#3614 and part of #2412)		907
10/17		Invoice #4912		876	10/31		Cash (#4912)		876
11/18		Invoice #5681		2,152	12/1		Cash (#5681)		1,208
12/20		Invoice #6347		814	12/29		Cash (#6347)		814

Age the balance.