You have a 20-meter length of wire. An x meter length is cut from the end of the wire, and is formed into a circle. The remaining portion of the wire is formed into a square.  a) Write an expression for A (x), the total are (in m^2) of the the circle and the square together, as a function of x.  b) Suppose that the area of the square may be no greater than 5m^2. Under these conditions, what is the domain of the function A (x)? Give an exact awnser.

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