Answer:
Step-by-step explanation:
In japan the average cost is up from $.1200 in some change to
in Switzerland the average cost is 15.00 and some change

If

and

share no common elements, then

, which means

On the other hand, if the smaller set is entirely contained within the larger set, i.e.

, then

, and so

.
Answer:
if one run a speed of 10 feet per second and the other 8 feet per second I think it is 18 feet apart they will be because one run 10 feet and the other one run 8 so 10+8=18 feet apart from each other