It looks like you have a Dell system. But one thing to look for is an NTFS or ext4 and Swap File partition.
For instance, in your GParted partition graphic, the first 5 partitions and the last 12.45 PBR partition are from the Windows 8 install.
The 350 MB partition was placed there during the Windows 8 to 8.1 update, so it is Windows also.
I would say SDA 9,10, and 11 are the Linux install. the 1 MB unallocated partition may be the MBR Ubuntu will add to a GPT configured drive if you install Ubuntu in the Legacy configuration as opposed to UEFI.
So Sda 1,2,3,4,5,6,7,8 are the Windows installs. Sda 9,10,11 are the Ubuntu install. Very convenient the way the new partitions have the higher partition numbers.