Ireally suck at radicals and complex numbers.

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.

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2