Question

can someone help me how to find the percent of b-10


Comments
  • https://lightcat-files.s3.amazonaws.com/chat_images%2FF59BFDE3-EFE4-4546-93CB-E5AE11F74283.JPG Ximena commented over 3 years ago
  • https://lightcat-files.s3.amazonaws.com/chat_images%2F3C6ECDF8-BE73-4A06-96EB-06E62FEB5CD8.JPG Ximena commented over 3 years ago