What is scientific notation 14,200,000

What is the solution set of the quadratic inequality x^2-5< or equal to 0

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 name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?