Answer P10

a=123.456000 *pa=123.456000

Comments: Pointers can point to anything in memory, including variables of type double.

#include <stdio.h>
int main( void )
{
  double   a = 123.456 ;
  double *pa = &a ;
  
  printf("a=%lf *pa=%lf\n", a, *pa );
 
  return 0;
}