For this case we have to:
The circumference or perimeter of a circle is given by:

where d is the diameter of the circle.
Substituting the given value of c,
, we have:


Therefore, the diameter of the circle is 6m.
Answer:
Option C
X = y
y = 4
By the substitution property, we can replace y with 4 in that first equation.
x = 4
If the rate at which they are giving the DVDs is the same then it is 4/65 or 16.25% or 0.1625.
Now just multiply 455 by the rate (4/65 or 16.25% or 0.1625) to find how many DVDs were given.
455 × (4/65) = 28
28 DVDs were given away
hope it helps :)
My Favorite paring from BNAH has to be Honestly be Kirishima and Bakugou cause Kiri and Baku have made such an amazing bond over the time of the anime also I would Love to know yours and your opinion. Peace out
:P :D