Which expression can be used to convert 22 australian dollars to us dollars

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

Closing a credit card usually _your debt ratio.a. increasesb. decreasesc. improvesd. has no effect on

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)