(0,04)⁻² : (1/5)⁻³ = (4/100)⁻² : (1/5)⁻³ = (1/25)⁻² : (1/5)⁻³ = (5⁻²)⁻² : (5⁻¹)⁻³ = 5⁴ : 5³ = 5⁴⁻³ = 5¹ = 5
Ответ: 5