Find x y and z if x/9=y/6=z/3 and 2x+3y-4z =8

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.

Hey free points ! people i have a few math questions on my profile consider looking at them i have to get done in 30 mins!

Do you mind if you guys me with this question i’m on number 8