You didn't post a file so I can't help you. Perhaps put a picture?
Number of strings =

= 21 x 21 x 21 x 21 x 21 x 5 = 20 420 505
Answer: 20 420 505
Answer:
your answer is- toni types 270 lettre in three minutes
Step-by-step explanation:
2:180=90
3:270=90
Step-by-step explanation: