Explain the relationship between the slope and the derivative of f(x) at xequals=a

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.

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5