The slope i don’t understand rise/run

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

How are sas and sss used to show that two triangles are congruent?

If a suspect is in possession of 20 grams of cocaine how many ounces does he possess what will the charge be