Vote now!Unanswered
how to say this?

i have a question when you want to send a letter to a parents of a friend called ´´ herr und Frau Sanders ´´ we write in the salutation ( Anrede) in the letter like this ´´ Sehr geehrte herr und Frau Sanders ´´ , is it correct?  and other question in case i want to send it to my professor . what to write in the salutation in the letter? please answer me i need to know: