30 POINTS CAN SOMONE PLS ANSWER THIS :( read it then answer tyyy!!!

Which expression gives the area of the triangle shown below

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=[? ]

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9