When is a salt formed?

When you filter salt water

When acid reacts with a base

When acid reacts with another acid

When a base reacts with another base

=> when acid reacts with base

Explanation:

In general, acid-base reactions can be represented by the following

acid + base => salt + weak electrolyte          

Also, you  might read the post at the link below  to better understand this topic

                     => link

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds

i think its 100

i hope this !