 
 <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: <ibo> Ajụjụ: Bernie nwere akwụkwọ ozi pụrụ iche iri na asatọ. O kpebiri ire ọkara nke ihe ndị o nwere maka $15 kwa kaadị. Mgbe o rere akwụkwọ ozi ya n'ụzọ gara nke ọma, o kpebiri iji ego nile o nwetara zụta akwụkwọ ozi ọhụrụ ndị ọ ga-akwụ $5 maka nke ọ bụla. Ka e mesịrị, ole ka kaadị postkaadị Bernie nwere? Buru ụzọ chee echiche nke ọma, kpebizie ihe ị ga-eme: 