Out of frame (6 inches)

The function g(x) is defined as shown. x-1, -2 g(x) = 2x+3, -1 6-x, x23

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).

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way