Answer:
1. What happens when air is heated or cooled? ... So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
Step-by-step explanation:
Hope this helps
Answer:5(7) + 2(2) = 39
Step-by-step explanation:
Answer:
Step-by-step explanation:
f(x)=4(3) with an exponent of x on the top.
The answer to the question is 28
but if you want negative, then its -28
