What yearly wage did Micah offer the young Levite to be his priest?

Answer: 10 shekels of silver

Micah said, "Be my father and priest," offering ten shekels of silver per year, a suit of clothes, and provisions.

““Stay with me,” Micah said to him, “and be my father and priest, and I will give you ten shekels of silver per year, a suit of clothes, and your provisions.” So the Levite went in”— Judges 17:10 (BSB)