What are two events that cannot occur at the same time

disjoint

Step-by-step explanation:

Two events are mutually exclusive if they cannot occur at the same time. Another word that means mutually exclusive is disjoint. If two events are disjoint, then the probability of them both occurring at the same time is 0. Google study43.com

Day and Night cannot happen at the same time. It is either day or night. It is never both.

You cannot see a real lunar eclipse and a real solar eclipse at the same time.

Hope this helps

Step-by-step explanation:

b.an increase in a causes b to decrease

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.