Answer:
6 m by 8 m
Step-by-step explanation:
The sum of two adjacent side lengths is half the perimeter, so is 14 meters. Two numbers differing by 2 that have a sum of 14 are half that total plus or minus have the difference: 7 ±1 = 6 and 8.
The room is 6 meters wide and 8 meters long.
Answer:
1. Pour the mixture through a filter to separate the sand; 2. Evaporate the liquid to separate the salt.
Step-by-step explanation:

When taking a polynomial modulo

, you reduce its terms' coefficients modulo

, so that, in conjunction with the result above,

For completeness, the linear term's coefficient should also get reduced in the same way as the constant term, so that