Answer: A, 10
Step-by-step explanation: So, first you need to add 180+204 which will give you 384.
Now you must divide 384/17 (since we need to give the classroms the SAME number of chairs) This will give you 22r10
Because we have a remainder that will be the amount of chairs in the STORAGE ROOM
Hope this helps! Please give brainliest <3
