What is the greatest common factor? 15x - 20

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).

Write two subtraction equations that are equivalent to 5 + 12 = 17.

The circle below is centered at the point (3, 1) and has a radius of length 2. what is the equation?