Expression is a number, variable of a combination of operation symbols. An equation is made up of 2 expression connected by an equal sign, So, the first answer is false.
Now, for the second part of the question, we have
[tex]19-9x\text{ is an expression}[/tex][tex]v+16=-9\text{ is an equation}[/tex][tex]\frac{30}{5}+16\text{ is an expression}[/tex]