# Independent answer check

With F2:F6 built from the numeric date parts, the October QUERY returns Pens $100 (Oct 1), Folders $75 (Oct 15), and Labels $125 (Oct 31). It excludes Paper $50 (Sep 30) and Tape $200 (Nov 1). The three included amounts total $300. The third QUERY argument is 1 because row 1 is a header.

Independent date comparison: 2026-10-01 <= date < 2026-11-01 selects exactly three rows. 100+75+125=300; Sep 30 and Nov 1 are outside.