-27
9 and 11.
-3 and -3.
-10 and 1
10 and -9
569
49
The two numbers that add to 16 and multiply to 63 are 7 and 9. This is because 7 + 9 = 16 and 7 * 9 = 63. These numbers satisfy both conditions simultaneously, making them the correct solution to the problem.
-3 and -3
9 ones and a 5
-91
-73