What is the proper salutation for a chairperson?

Can a women wear a tuxedo to a black tie wedding? Is it right to write with profound regards at end of a letter? Proper salutation for a mayor? What do you call to a person with no word of honor? What is the proper salutation in a letter for multiple recipients? What is the difference in formerly an formally? If you have a dry sense of humor how can you get people to like you? How do you write Dear Mr and Mrs xxxx in French? What does the phrase Cut One mean? can I have a Sample of a vote of thanks that you can give at a church function? What is the proper use of the abbreviation for regarding? What is Australian slang for a friend? What was the code of etiquette for a knight called? Suppose Mr Smith holds so much prejudice against a student that it causes him to treat that student unjustly or unfairly Mr Smith is demonstrating? What does condecending mean? What are the courtesies in Netherlands? What is a derogatory manner? How do you address a sympathy card to widow Use her first name or husbands whole name? What do you call a person who irritates badly? What is the meaning of the idiom fly off the handle?