Answer:
32760
Step-by-step explanation:
This is a permutation of 15 objects taken 4 at a time. To calculate this, we use the formula:

In our case, n is 15 and r is 4:

Answer:
1
Step-by-step explanation:
The answer is 4 trust me bro
Answer:
288 I think
Step-by-step explanation:
24 hours each month. Each year has 12 months so 24x12=288