 <translate> Question: Bernie has a collection of 18 unique postcards. He decided to sell half his collection for $15 per postcard. After he has successfully sold his postcards he decided to spend all the earned money to buy new postcards for $5 each. How many postcards does Bernie have after all his transactions? Think carefully first, then make a decision: <yor> Ìbéèrè: Ọ̀gbẹ́ni Bernie ní káàdì ìkíni méjìdínlógún tó ṣàrà ọ̀tọ̀. Ó pinnu láti ta ìdajì àkójọpọ̀ rẹ̀ ní dọ́là mẹ́ẹ̀ẹ́dógún fún káàdì ìléwọ́ kọ̀ọ̀kan. Lẹ́yìn tó ti ta káàdì ìkíni rẹ̀ dáadáa, ó pinnu láti ná gbogbo owó tó rí gbà láti ra káàdì ìkíni tuntun kan tí wọ́n ń tà ní dọ́là márùn-ún ọ̀kọ̀ọ̀kan. Àwọn káàdì pọ́ńbélé mélòó ni Bernie ní lẹ́yìn gbogbo ìnáwó tó ṣe? Kọ́kọ́ ronú dáadáa, kó o wá ṣèpinnu: 