5 and 47, 9 and 43, 11 and 41, 23 and 29.
9 29/40 : resolve the fraction by dividing 29 by 40 = 0.725, then add to whole number, so 9 + 0.725 = 9.725
17+5+4
9 9
3, 7 and 9. 4 odd digits that add up to 19 would be 9, 9, 0.5, 0.5
29
You have to add the sum up and divide it by the numbers there are there. Like 5 7 8 9 add it up it's 29 29 divide by 4. Which I'd 5 rem 4
5 and 47, 9 and 43, 11 and 41, 23 and 29.
9 29/40 : resolve the fraction by dividing 29 by 40 = 0.725, then add to whole number, so 9 + 0.725 = 9.725
They also add up to a multiple of 9.
17+5+4
They add up to 9
you can add up 8.44 and .45
The interior angles of a 9 sided nonagon add up to 1260 degrees and its exterior angles add up to 360 degrees
9 9
-8
If: x^2 +18x = 29 Then completing the square: (x+9)^2 -81 = 29 or (x+9)^2 = 110