20
Just about anything less than 36. Examples, and these all add up to 36: 17 x 1 (17+17+1+1 = 36) 9 x 9 (9+9+9+9 = 36) And many dimensions in between these.
35
17 + 9 = 26
27/36 in its simplest form is 3/4. 27/9 equal 3 and 36/9 equals 4.
9
9 because the digits of 36 add up to 9
8
Factors of 26: 1, 2, 13, 26. Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36. GCF (26, 36) = 2
17
35
26