Handsome Jack is buying a pony made of diamonds. The price of the pony is P dollars, and Jack also has to pay
a 25% diamond pony tax.
Which of the following expressions could represent how much Jack pays in total for the pony?

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function