Answer:
27 : 64
Explanation:
(3/4)^8 : (3/4)^5
= (3/4)^(8-5) : (3/4)^(5-5)
= (3/4)^3 : 1
= (3^3)/(4^3) : 1
= 3^3 : 4^3
= 27 : 64
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