Hi, the steps you'd take would depend on the records Blogger.com have asked you to enter We have guides for 'A' records, 'TXT' records and 'CNAME' records. I'll include links to each of these, and these should help you link your domain to your blog.
How do I create an A record to point my domain to an IP address? https://www.dynadot.com/community/help/question/create-A-record
How do I create a CNAME? https://www.dynadot.com/community/help/question/create-CNAME
How do I enter a TXT record for my domain? https://www.dynadot.com/community/help/question/create-TXT-record