A person invested $650 in account growing at rate allowing the money double every 13 years. How long, to nearest tenth of a year would it take for the value of the account to reach $1,620?

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=[? ]