HELP URGENT! WILL GIVE BRAINLIEST!!

1) What is the value of 8!?

A) 8
B) 64
C) 512
D) 40,320

2) What is the value of 5P5?

A) 5
B) 25
C) 120
D) 125

3) What is the value of 8P4?

A) 40,320
B) 1,680
C) 32
D) 24

4) What is the value of 7P7?

A) 1
B) 14
C) 49
D) 5,040

5) Four out of nine performers will be chosen to in a row on stage. How many ways can the 4 performers stand in a row?

A) 362,880
B) 347,760
C) 15,120
D) 3,024