From the following, what is the last date for each discount period and credit period?

$\backslash$table$[[$Date of invoice,Terms,End of discount period,End of credit period$],[$a$.$ November $4,\frac{2}{10},\frac{n}{30},,],[$b$.$ October $3,2021,\backslash$table$[[\frac{3}{10},\frac{n}{30}$ ROG Goods$],[$received March $10,2022$