$.$ Add variables, elements, and computed properties to do any two of the following:

$3\mathrm{.}1.$ Display a message when x is bigger than $500.$

$3\mathrm{.}2.$ Create$/$increment$/$display a second variable, y$.$

$3\mathrm{.}3.$ Display a message when y is smaller than x$.$

$3\mathrm{.}4.$ Use a computed property to display $$login accepted$$ if the current value of the variable userName matches your first name.

$3\mathrm{.}5.$ Create a new variable t $,$ and use a computed property to display $9\mathrm{.}8*$ Math.pow$($t$,2).$ This is the distance travelled in free fall near earth for a given number of seconds.