Find the maximum and minimum values of the function for the polygonal convex set determined by the given system of inequalities. Picture provided

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

We just started the introduction into circles and i have no idea how to do this.

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?