Answer:
Not sure how answer that bc I can't really see it that well but I hope that you get your answer!!
Answer:
80°=x°[by alternate exterior angle]
Now, recalling that for 1 yard, there are 3 feet, therefore

and keeping in mind that, there are 4840 yd² in 1 acre, then
You can tell if the equation is linear or not if the equation makes a straight line on a graph.