URGENTLY! In shop delivered 90 tea services on 30 lt. 30 services are already sold. For how many litas of services it is not sold yet?

17
90*30=2700 30*30=900 2700-900=1800l1) 90*30=2700 (liters) 2) 30*30=900 (liters) 3 are already sold) 2700-900=1800 (liters) remained
213
Answer add