You collect a total of $75 in donations from three people. The three donations are in the ratio 4 : 4 : 7. How much is each of the smaller donations?

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.