.9 divided by 911 rounded to the nearest whole number

Which of the following is the rational exponent expression of 6 root f

David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl