So the Correct answer would be all three of them.
This includes 27:18, 12:8, and 21:14.
The math behind this includes proportions.
For instance, if you multiple 3 by 9, you get 37. You have to multiple 2 by 9 now, and you should get 18. This is how all three of the answers are correct!
Answer:
My age is 12 years.
Step-by-step explanation:
Given:
Sister's age = 10 years
Let my age be x.
Now according to question;
my brother's age is 1/3 of my age
So brother's age = 
Also according to question;
my sister is 6 years older than my brother;
Sister's age = 
Also given Sister's age = 10 years
hence equation to find my age will be expressed as below;

Brothers age = 
Hence my age is 12 years.
Answer:
-2
Step-by-step explanation:
-b+/-
where ax^2+bx+c
Answer:
am i right or wrong not sure.
Step-by-step explanation:
a=1/2hc+1/2hd