Help me find this answer please (honest and most best answers only)

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

Oscar and julie ashton are celebrating their 15th anniversary by having a reception hall. they have budgeted $4,500 for their reception. if the reception hall charges a $90 cleanup fee plus & 36 per person, find the greatest number of people that they may invite and still stay within their budget.

If i have 20$ and i gave 5$ away how much i got