0
Wiki User
4+8
=12
8
17
-7
The sum of the numbers given is 31. 1 + 2 + 4 + 8 + ... + 2n = 2n+1 - 1
-4 minus 8 plus 5 is equal to -7
4 plus 8 plus 12 plus 16 is equal to 40.
4
-6
4 + 5 + 8 is equal to 17
The sum of 8/9 and 4/7 is 1 29/63.
-4