Is it permissible to eat in the house of a woman whose money comes from the earnings of a women's hairdressing salon? Are her charities accepted? And is it permissible to eat food from a wedding that includes music?

It is permissible for a woman to open a beauty salon for women, including cutting the hair of a married woman for her husband, provided that the conditions mentioned in relevant fatwas are met. The money earned from this profession is lawful, and it is permissible to give charity from it. As for attending a wedding that includes music, it is not permissible to attend it or eat from its food, because Islam forbids attending banquets of reprehensible acts that cannot be changed, as stated in the Hadith (definition) of Umar ibn al-Khattab: "Whoever believes in Allah and the Last Day should not sit at a table where alcohol is served."