 
 <translate> Olivia bought two packs of basketball cards at $3 each, and 5 decks of baseball cards at $4 each. If she had one $50 bill, how much change did she receive? Give me reasons, before answering the question <hau> Olivia ta sayi kwando biyu na katin kwando a dala uku kowanne, da kuma kwando biyar na katin ƙwallon baseball a dala huɗu kowanne. Idan tana da takardar dala hamsin guda ɗaya, nawa ne ta samu? Ka ba ni dalilai, kafin ka amsa tambaya 