A puddle is 0.06 feet deep after 1 hour and 0.03 feet deep after 5 hours. At what rate in
m/h is the level of the water changing?

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).

The sum of two numbers is 86, and their difference is 20. find the two numbers

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package