Answer:
a) = 4/9 b) -20/21
c) -77/6 d) 39/22
Step-by-step explanation:
Answer:

Negative numbers go first, the greater the number, the smaller the number.
We have
As we can see in order to find the shaded area of the figure, we only need to calculate the area of a square.

the shaded area is 400 mm^2
Answer:
A= 1,0 B=0, -3 C=-6, 5 D= -3, -5