A safe has a 4-digit lock code that does not include zero as a digit and no digit is repeated. What is the probability that
the lock code consists of all even digits?
To find the total number of outcomes for this event, find the permutation of things taken 4 at a time.
The total number of outcomes is
The total number of favorable outcomes is a permutation of things taken 4 at a time.
The probability that the lock code consists of all even digits is out of 3,024.

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.  

there are 25 people coming to the party

step-by-step explanation:

the text says that there will be 22 children at this party, 1 teacher, and 2 parents. so if you add them all together (22+1+2) it will equal 25. (=25)

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: