If m of 8 = 23 degrees, find each measure. Give your reasoning. (Just need the rest of the answers.)

Find the gradient of f(x,y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

Meee i honestly dont know what this question talking about

During how many months was the difference between the number of days with homework and with no homework greater than 6?