Find the value of x plss helpp

Need on this geometry question. explain how you did it.

Will give let f(x)=2x and g(x)=[tex]2^{x}[/tex] graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ? enter your answers in the boxes x=[? ] or x=[? ]

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3