tolong jawab dong plisss... soal nya buat besok

15. kemeja 21 lusin + 1 1/2 lusin
=22 1/2×12
=270 potong
celana 7kodi+3/4 kodi
=7 3/4×20
=155 potong
kaos 1 gros+1/2
=1 1/2×144
=216 potong
jawaban nya B