Step 8 Room 23

Room 23 has 17 doubles and the words 'three', 'to', two'. 'to'.
Hmm, 3 'two's. Therefore, 17 times 2 = 34. No. 3+2+2+2=9
(Thus, 28 was redundant, maybe a mistake?)
Oh, 17 - 9 = 8.
Let's try room 8.