Answer:
6
Step-by-step explanation:
n ! = n(n - 1)(n - 2)..... × 3 × 2 × 1
Given
(n - 1) ! with n = 4, then
(4 - 1) !
= 3 ! = 3 × 2 × 1 = 6
Answer:
The Median is 20
Arrange the numbers in order
15 20 20 22 25
The middle number is 20
For this case we have by definition, that the perimeter of the figure will be given by the sum of its sides, that is:

We add similar terms:

Thus, the correct option is option b. That is, 
Answer:

Answer:
You are going to be in the 1st floor/Vas a estar en el 1er piso!
Yo creo que
Step-by-step explanation: