 
<translate> Buru ụzọ chọpụta ọnụọgụ nke okpokoro okpokoro Jackson na-anakọta: 45 hermit crabs * 3 okpokoro okpokoro / hermit crab = 135 okpokoro okpokoro. Mgbe ahụ, chọpụta ọnụ ọgụgụ kpakpando mmiri ọ chịkọtara: 135 ụyọkọ kpakpando mmiri * 2 kpakpando mmiri / ụyọkọ kpakpando mmiri = 270 kpakpando mmiri. Tụkwasịzie ọnụ ọgụgụ nke anụmanụ nke ọ bụla ọ chịkọtara ọnụ iji chọpụta ọnụ ọgụgụ ha nile: 135 ụyọkọ shells + 270 kpakpando mmiri + 45 ụyọkọ crabs = ihe ncheta 450. Azịza ikpeazụ: 450. <eng> First find the number of spiral shells Jackson collects: 45 hermit crabs * 3 spiral shells / hermit crab = 135 spiral shells. Then find the number of starfish he collects: 135 spiral shells * 2 starfish / spiral shell = 270 starfish. Then add the number of each animal he collects to find the total number: 135 spiral shells + 270 starfish + 45 hermit crabs = 450 souvenirs. Final answer: 450. 