Tolong bantu nomor 3 dan 4 yaaa

3. jawabannya a
4. jawabannya c

3.
8^(2/3) - 27^(-2/3)
= (2³)^(2/3) - (3³)^(-2/3)
= 2² - 3^-2
= 4 - 1/9
= 35/9
= 3 8/9

Jawaban A

4.
luas persegi = s²
529 = s²
s = 23 meter

keliling persegi = 4s
= 4(23)
= 92 meter

Jawaban C