please dijawab yaa no 1&2. Thanks

1. D
= 8'-1/3
= 1 per 8'5/3
= 1 per (2'3)'5/3
= 1/2'5
= 1/32

2. C
= 3akar2 akar75 per akar54
= 3akar75 per akar27
= 3akar25 per akar9
= 3×5 per 3
= 5

jika jalannya salah maaf...
note: '(pangkat)