Answer:
should be added to the given equation.
Step-by-step explanation:
Let a is added to the given equation.
According to the given condition,

So,
should be added to the given equation.
equation is:

so if its even f(-x) should be equal to f(x)
that means

so f(x) is not equal to f(-x) so its not even
If its odd than f(-x) should be equal to -f(x)

so as we can see f(-x)= - f(x)
so the function is odd
Ans:function is odd and not even
Answer c because .10 x 40 equals 4 plus 2