HELP for the function f defined by f(x)=3x^3-2x+5 find f(-x), -f(x), and -f(-x)

3(10x-y)-5(x-y^2) need this solved asap

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

If i have one apple and give you the apple, how many apples do i have?