mtk Kaka yg baik hati tolong di bantu dong

2.fpb=3pangkat3=27
kpk=2×2×3×3×3×3=324

1.
515 - (-12) x 25 : 20
= 515 + 12 x 25 : 20
= 515 + 300 : 20
= 515 + 15
= 530

2.
54 = 2x3x3x3 = 2x3^3
81 = 3x3x3x3 = 3^4
108 = 2x2x3x3x3 = 2^2×3^3
KPK = 2^2x3^4 = 324
FPB = 3x3x3 = 27

3.
[tex]11 {}^{3} - \sqrt[3]{4.913} \\ = 1.331 - 17 = 1314[/tex]

maaf kalo salah :)