Which of the following are right triangle congruence theorems

All of them

Step-by-step explanation:

-1

Step-by-step explanation:

It is given that Brandie lives on the twelfth floor of her apartment building.

Initial position = 12 th floor

She walks down 2 flights to visit a friend, So the change in her initial position is -2. New position of Brandie is

After that she walk up 3 flights to deliver a message to a neighbor. So the change in her position is 3. New position of Brandie is

Now, the Brandie reached on the 13th floor of her apartment building. To get back to her starting point that is 12th floor, she must walks down 1 flight.

1 flight down = -1

Therefore, the integer -1 represents the number of flights Brandie must walk to get back to her starting point.