A computer technician charges $37.50 per hour plus a $70 service charge find the total charges if it takes to computer technician 5.5 hours to complete a task

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 an algebraic expression for the word expression the quotient of c and 8

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!