Fill in the correct numbers for each blank. These questions refer to the relation $y=3x4$

For an input of $x=20,$ the corresponding output is $y=$ This means that $$ is in the domain of the relation $y=3x$ and $$ is in the range of the relation $y=3x.$

For an output of $y=72,$ the corresponding input is $x=$ This means that $$ is in the domain of the relation $y=3x$ and $$ is in the range of the relation $y=3x.$