Answer:
5.25
Step-by-step explanation:
Prove it by explain how the shapes are interacted or not
Answer:
b1=
b2=
Step-by-step explanation:
Answer:
the answers are : A , B , and E. i just took the assignment.
Step-by-step explanation:
<span>When order does not matter you use what is called n choose k formula
n!/(k!(n-k)!) where n is the number of things to choose from and k is the number of choices made, in this case:
20!/(4!(20-4)!)=4845</span>