Answer:
Its D
Step-by-step explanation:
↖(^ω^)↗
Answer
t f
Step-by-step explanation:
Answer:
120,960 ways
Step-by-step explanation:
Assuming that each piece is unique, then the order of each piece matters.
There are 9 pieces in total, there are 3 options for the first piece (3 piano pieces), and the remaining 8 pieces can be permuted. The number of possible arrangements is:

The program can be arranged in 120,960 ways.
The lamp post is 202.5 cm high.
Hope this answer helped..it would really help me if you gave me brainliest answer, I desperately need. Thanks