79
-5 - 7 + 6 = -6
-5 + -7 + 6 = -6
5
7 + 5 + 4 + 5 + 3 + 4 + 6 + 5 + 4 + 5 + 6 + 4 + 7 = 65
7(5 + 6)
3+6+5+7+(9-7)=23
If you put the numbers in order it is: 0, 0, 1, 2, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 7, 7, 7, 7, 8, 9. Since there are 25 numbers, we are looking for the thirteenth number, which is 5.
13
6+9+7-5=17 that is the answer
-4 + 5 + (-7) = -6
It is: 7+6+5+4+3 = 25