3/4 - 5/9 .....common denominator is 36
27/36 - 20/36 =
7/36 <==
Slope = (y2-y1)/(x2-x1)
Points (-3,-3) and (0,3)
(3+3)/ (0+3) = 6/3 = 2
The slope is 2
Answer:
y = - 8
Step-by-step explanation:

Divide the shape into 2 rectangles:
Area = Length x width
1 : 7 x 30 = 210
2: (25 -7) x (30-20) = 18 x 10 = 180
Total area = 210 + 180 = 390 square feet.