Find the coordinates of the center and the measure of the diameter for a circle whose equation is (x + 8) +(y - 4)^2 = 81

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

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.

Find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3 10x^5 x^3 5x^3 5