Answer:
(11 hrs + 16 hrs)/2 = 13.5 hrs
13.5 hrs /2 = 6.75 hrs
We need the object and the characteristics.
Answer:
A. Air that is breathed in :)
the last one because 7*3=21 14*3=42 and 21*3=63
Answer:
a+2b
Step-by-step explanation:
2(a+2b)-a-2b
2a+4b-a-2b
=a+2b
