If $$f(x)=2\{x\}+5 x$$, where $$\{x\}$$ is fractional part function, then $$f(-1.4)$$ is

If $$f(x)=\frac{x}{2 x+1}$$ and $$g(x)=\frac{x}{x+1}$$, then $$(f \circ g)(x)=$$

The domain of the function $$\log _{10}\left(x^2-5 x+6\right)$$ is

Range of the function $$f(x)=3+2^x+4^x$$ is