She harvests roughly 11 and a half acres an hour
Split the room into 2 rectangles
area = 5*4 + 3*3 = 29 sq ft
So the cost is 29*8 = $232
2 3/4 = 11/4 <=== written as an improper fraction
(2,-2)(5,7)
7-(-2)= 9
5-2= 3
9/3= 3
slope = 3
(you could also calculate the slope by just counting up how many units it goes up/down when you pick a point from the x-axis and move left/right. basically counting the rise over run)
I don't really know what the question was, but I am guessing that it is 20% times 45. The answer I got was 9. I hope this helps, sorry if not. c;