Given the image below, find the area of the regular polygon. The Perimeter of the decagon is 80 in.
12.3 in.

Which formula gives the area of a triangle? a=1/2(b+h)

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

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.