Set up a proportion.
2/3 = 12/x. Cross multiply the proportion.
2x = 36. Solve for x.
x = 18.
Check the picture below.
now, since we know what "f" is, let us use the CNT triangle with the small COR one.

Answer:
t = 25
Step-by-step explanation:
T is 25 because you take 1 away from the t+1 side and add the 1 to the 24 side.
Answer:
32 is composite and the rest are not. Hope this helps!
Step-by-step explanation:
Don't study your heart out, but study here and there and don't stress.