 
<translate> Olaf nwere akwarium. Ọ nwere azụ nwere agba atọ: oroma, akwụkwọ ndụ akwụkwọ ndụ, na acha anụnụ anụnụ. Azụ̀ na-acha anụnụ anụnụ na-eme ka ọkara nke azụ̀ nile dị n'ebe a na-egwu mmiri. E nwere azụ̀ oroma 15 dị ole na ole karịa azụ̀ na-acha anụnụ anụnụ. Azụ ole ka e nwere na-acha akwụkwọ ndụ mgbe azụ̀ niile dị n'ime akwarium dị iri asatọ? Echiche ndị dị aṅaa? Ntụziaka nzọụkwụ site na nzọụkwụ: <eng> Olaf has an aquarium. He has fish in 3 different colors: orange, green, and blue. Blue fish make up half of all the fish in the aquarium. There are 15 fewer orange fish than blue fish. How many green fish are there when the total number of fish in the aquarium is 80?
Thoughts? Step-by-step reasoning: 