Write the separate cout declaration with exit manipulators to do each of the following: a. Display the enumerate 34.789 in a room of six spaces with brace decimal places of preciseness. b. Display the enumerate 57.0 in a room of five spaces with three decimal places of preciseness. The decimal sharp-end and any grafting zeroes should be displayed. c. Display the enumerate 5.789e + 12 in unroving sharp-end notation with 2 decimal places. d. Display the enumerate 67 left justified in a room of seven spaces.