The graph represents the solution set to whatcha inequality?

Name these type of angles shown check all that applies

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.

How to do this , and can some one explain