Tolong dijawab buat besok

ar^2 = 96
ar^5 = 12
ar^2 . r^3 = 96. r^3 =12
r^3 = 12/96 = 1/8
r = 1/2
ar9 = ar^5 . r^4 = 12 . 1/2^4
12 . 1/ 16 = 3/ 4