Answer:
D)0,4
Step-by-step explanation:
(-3,-8)
x= -3, y= -8
x=-7
A) 5/9 = 10/18
b)7/13 = 14/26
-2 11/20
- 2/5 - 5/4 + (-9/10)
- 2/5 - 5/4 = 1 13/20
1 13/20 + (-9/10) = -2 11/20