Answer:
2. -8x - 6
3. 4.5x + 10 (I think, not quite sure)
4. 0.25 - 5x (I think, also not quite sure)
5. -8x - 5y + 5.5
Explanation:
2. Distribute the -2 to all terms except -1.
-2(4x + 2.5) - 1
-8x - 5 -1
-8x - 6
5. Combine 6x and -14x (6 - 14 = -8).
6x - 5y - 14x + 5.5
-8x - 5y + 5.5