 
 <translate> With her savings, Sara bought two books: a book for 5.5£ and a book for 6.5£. She gives a 20£ bill to the seller. How much change does she get back? Give me reasons, before answering the question <ibo> Site n'ego o chekwara, Sara zụtara akwụkwọ abụọ: otu akwụkwọ maka £5.5 na otu akwụkwọ maka £6.5. Ọ na-enye onye na-ere ya ego dị paụnd iri abụọ. Ego ole ka ọ ga-enweta? Nye m ihe kpatara ya, tupu ị zaa ajụjụ a 