Answer:
Step-by-step explanation:
To find the number of different ways she can stack 3 of them in a tower, we need to use the formula:

n = 4
k = 3





Answer:
add 8 to 2 and then multiply the 8 with 12.
Step-by-step explanation:
Answer:
it is becuse you do 13-4 which would give you nine.
Answer: Yes
Step-by-step explanation:
It is a relation because each person will most likely have a different name and you can have plenty of the same outputs just as long as the input doesn't repeat at all.