GIF87a is the original format for GIF images. GIF89a included support for multiple images in the file, as well as support for animation.
Octane rating. regular is 87 plus is 89 or 91
It is: 87
89-2 = 87
89
An arithmetic sequence with common difference of 2.
the 6187 doesn't have PIP or Bluetooth. That is the only difference I have found. Also, the audio optical output does work for HDMI on the 89, but DOES NOT on the 87. This is a big deal!
89% + 87% = 176%
15 - (-89) = 104
89 - 21 = 68
89
It is 147.
85, 87, 89, 91, 93 and 95.