What’s the answer to this helppoo

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

Find the maximum value of p= 4x + 5y subject to the following constraints :

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart