how much postage for a 9x12 envelope weighing 6.6 ounces
I think you mean 9x12 envelope.
A 4-ounce large envelope currently costs $1.57.
8x11
The answer will depend on where you are posting from, where you are posting to and whether or not there are any special requirements.
nope
88
8x11 = 88 < 90
There are 88 feet in an 8x11 room. A meter is about 3.28084 feet, so there are 26.8223991. This rounds up to 27, so there are about 27 meters in an 8x11 room.
11x8 - 9x9 = 7
88 square feet
88 b/c 4x22=88 8x11=88 and88x1=88
yes 88 is even and therefor 2 will go into it another quick thing to get 88 is 8x11=88