Graph 3y-9=-18 then find out if it is a solution

Is every rectangle is a parallelogram? true false

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

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.