please answer the problem

Additional Activities Try this problem to boost your understanding on circles. A. Give the standard equation of the circle given the following conditions 1. Center ( - 1, 3) ; radius 4 2 Center (-1, - 1) ; radius 3 3. Circle A 4. Circle B B. Sketch the graph of x2 + y2 + 4x = 12 in a rectangular coordinate plane C. Determine the center and radius of the given circle then write its standard form. 5