Question and the graph is on the pictureEMERGENCY HELP ILL MARK YOU BRAINLIST

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

What is the value of the expression below? 148+(-6)| + |– 35= 7|

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?