What is the equation for p(x)?

Given right triangle xyz, which correctly describes the locations of the sides in relation to

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

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.