Question

IF 10^(3x)=125 THEN 10^(-2x)=?

Answer 1

$10^{3x} =125 \\ 10^{ 3x } = 5^{3} \\ 10^{ x^{3} } =5^{3} \\ 10^{ x } = 5 \\ 10^{ 2x } = 5^{2} =25 \\ 10^{ -2x } =1/25 = 0.04$