tolong bantu ya kak untuk soal no 15-16

jawab
logaritma
15.
²log 5 = x
⁵log 2 = 1/x

¹²⁵log 32 = ⁵log 32/⁵log 125
= ⁵log 2⁵ / ⁵log 5³

= (5. ⁵log 2) / (3. ⁵log 5)
= ( 5 (1/x) / (3)
= 5/(3x)
jawab E

16.
log 2 = m
log 3 = n
log (27/8) = log (3/2)³ = 3  (log 3- log 2) = 3(m - n)