Help me please.

answer: 12,000

step-by-step explanation: first you ar e supposed to add. then multiply then subtract

493 would be the correct answer

step-by-step explanation:

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

it's possible to build a triangle with side lengths of 3, 3, and 9.- true ( b.)