Strugling plz help anybody i only have 7 questions

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

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

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.