8:1 because it's just and 8 to a 1

From there we can see that because x equals both to a and b, it must be that a = b.
360 / 12 = 30
So, it's 30 degrees.
Incidentally, a 12 sided polygon is called a dodecagon.
Y= -2.5
the midline is basically the line where the distance is the same to the line from the max and the min
Answer:
i think 220
Step-by-step explanation:
because if he swim 250 then 30 less it would be 220