I < 3DAD
I < 3AD²
I ÷ AD² < 3
I ÷ AD² - 3 < 0
(I ÷ D) ÷ (A ÷ D) - (3 ÷ D) < 0
(I ÷ A - 3) ÷ D < 059.5 ≤ D < 69.5
89.5 ≤ A < 100(I ÷ lim 69.5 - 3) ÷ 100 < 0
I ÷ lim- 69.5 - 3 < 0
I ÷ lim- 69.5 < 3
I < lim+ 118.5(I ÷ 59.5 - 3) ÷ 89.5 < 0
I ÷ 59.5 - 3 < 0
I ÷ 59.5 < 3
I < 178.5I < lim+ 118.5 < 178.5Final answer: I < 178.5
Help fund the $15 daily operational cost of Derpibooru - support us financially!