Math Question: What is the radius of a circle with the equation x^2 + y^2 = 25?
+
What is the simplest form of the mixed number 3 5/8, and can it be factored into prime numbers?
+
Question: What is the area, in terms of x, of a circle with radius x, minus the area of a rectangle with length 2x and width x, plus the area of a parallelogram with base 3x and height x?