Answer:
20 : 9
Step-by-step explanation:
Given the ratio
2 : 
Multiply both parts of the ratio by 10 to clear the fraction
= 20 : 9
d1 = ax + by + c = 0 and d2= mx + ky + f = 0
if they are parallel :

8x + 2y = 7
8x + 2y - 7 = 0
- 8x + 2y -9 = 0
- 4x + y -6 = 0
- 16x + 4y - 19 = 0
you can create more whatever you want =)
Hope this helps ^-^
Answer:
It's A
Step-by-step explanation:
I've already done this!
D. X=10 all you have to do is pick an answer and plug it in