The answer is X= 25
You just have to divide 125 by 5
There are 8 nickels and 26 half dollars.
26/2=13
8*5= 40
The answer to your question is A.
Given:
The equation of a quadratic function is:

To find:
The equation of the axis of symmetry for the given function.
Solution:
If a quadratic function is
, then the equation of the axis of symmetry is:
...(i)
We have,

Here,
. So, the equation of axis of symmetry by using (i), is
Therefore, the correct option is C.