PeterCBWang

If the 29th  days will be 50% of the bottle, 30th day will be full (50% x 2 = 100%).tvb now,tvbnow,bttvb4 A/ z  J+ H  F$ f! D
Answer is 29 days!
$ t2 t. I; [% F+ Atvb now,tvbnow,bttvbplz answer