Answer:
1. Color Change.
2. Production of an odor.
3. Change of Temperature.
4. Evolution of a gas (formation of bubbles)
5. Precipitate (formation of a solid)
Step-by-step explanation:
Answer:
A) 28 m^2
Step-by-step explanation:
(4x4) + (3x4) = 28 m^2
Answer:
x > 8
Step-by-step explanation:

Hope this helps.
Answer:
1
Step-by-step explanation:
4(-x+4)=12
first is to open the bracket giving u
-4x+16=12
since 16 is adding where it is when takrn to the other side it will be subtracting giving u
-4x=12-16
-4x=-4
x= -4/-4
x=1