Answer:
18:54
Step-by-step explanation:
We have to simplify these ratios.
If the most simplified form of the ratios are equal, they are equivalent
3:9

24:54

18:54

Same ratio as 3:9, so 18:54 is equivalent to 3:9
36:81

Answer:
ax2 + bx + c = 0.
Step-by-step explanation:

The coordinates of the point marked there is :
22 diameter and 11 radius
Answer: 4x+5
4x-5
Step-by-step explanation: It's really hard to tell what the question is.