Question

The question is down below

Answer 1

19 days

Explanation:

because it doubles...

day 20: 1

day 19: 1/2

day 18: 1/4

day 17: 1/8

day 16: 1/16

day 15: 1/32

day 14: 1/64

day 13: 1/128

day 12: 1/256

day 11: 1/512

day 10: 1/1024

day 9: 1/2048

day 8: 1/4096

day 7: 1/8192

day 6: 1/16384

day 5: 1/32768

day 4: 1/65536

day 3: 1/131072

day 2: 1/262144

day 1: 1/524288

THIS TOOK FOREVER