Объяснение:

№6

а)

24³ : (3² * 8³ * 9) = 24³/(3² * 8³ * 9) =

(3³ * 8³)/(3² * 8³ * 3²) = (3³ * 8³)/(3⁴ * 8³) =

(1 * 1)/(3¹ * 1) = 1/3

б)

1) (4/9)² * 18² = 16/81 * 324 = 16/1 * 4 = 64/1 = 64

2) (-0,2)³ * (-10)⁴ = -0,008 * 10000 = -80

3) 64 - (-80) = 64 + 80 = 144