Post adjusting entries to the T$-$accounts.

$\backslash$table$[[$Cash$,,,],[\frac{3}{1},18,000,\frac{3}{1},9,600],[\frac{3}{1},7,200,\frac{3}{2},1,800],[\frac{3}{21},1,920,\frac{3}{3},3,000],[,,\frac{3}{18},600],[,,\frac{3}{20},2,100],[,,\frac{3}{31},420],[\frac{3}{31}$ Bal.,,$\frac{3}{31},1,080]]$

Accounts Receivable

$\backslash$table$[[\frac{3}{14},4,440,\frac{3}{21},1,920,,],[\frac{3}{28},5,040,,,,],[\frac{3}{31},V,,,,],[,,,,,]]$

Supplies

$\backslash$table$[[\frac{3}{6},2,400,\frac{3}{31},V$