Find the inverse x = 4n-2

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

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.

Through non-collinear points there is exactly one plane.