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Q: What is 9 plus 8 plus 16 plus 17 plus 18 equals?

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16 + 16 + 16 + 17 + 18 + 18 + 18 + 19 + 19 + 20 + 20 + 20 + 21 = 238

9+9=18

2 C8H18 + 17 O2 = 16 CO + 18 H2O

12 + 16 + 18 + 20 + 9 = 75

18 + 16 = 34

2+14=16

1

16

The numbers are 13 and 18

3

a=24 b=16 c=18

16 + 16 + 18 + 18 = 68

-1 + -45

the median for 16,16,16,16,16,16,16,16,17,17,17,17,17,17,18,18,18,20,21,25 is 17

The final number in this sum would be 18: 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 = 171

24 + 23 + 22 + 21 + 20 + 19 + 18 + 17 + 16 + 15 + 14 + 13 + 12 + 11 + 10 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 300

In ascending order (16, 16, 17, 17, 17, 18, 18) it is 17 that is in the middle.

16/8 equals 2

-a + 2 = 18 - 2 = - 2 --------------- - a = 16 a = - 16

7 + 18

10+10, 9+11, 8+12, 7+13, 6+14, 5+15, 4+16, 3+17, 2+18, 1+19

5

72 but there is such a thing as a CALCULATOR

17 + 14 + 17 + 19 + 18 + 13 + 11 = 109

2 + 2x = 18 2x = 18 - 2 2x = 16 x = 8