It says area but wouldn't number 8 be volume? i need , what do i do

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

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.

Which of the following is the result of expanding