Respuesta :
Answer:
70 ways
Step-by-step explanation:
We can solve our answer by using factorials, we know that the parade organizer recieved 8 entries in total, but the question asks how many ways he can arrange 4 out of the 8. Our equation will be:
8! / 4!
(8 * 7 * 6 * 5) / (4 * 3 * 2)
1680 / 24
70