How do you find the LCM??

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.

It says factor each expression completely 8y+48

Which graph represents the linear function below? y-4= (4/3)(x-2)