Tolong di jawab ya makasih​

Jawaban:

2¼ : 1½

9/4 : 3/2

9/4 × 2/3 = 3/2 = 1½ (C)

(-3)^-⁴ × 3^-²

3^-⁶ = 1/3⁶ = 1/729 (A)