Rearrange the equation to isolate $x.$

$A=\frac{CD}{x}$

$x=$

If $C=10\mathrm{.}00,D=5\mathrm{.}00,$ and $A={?}^{4}2\mathrm{.}00,$ what is the value of $x?$

$x=$

If $A$ is halved while $C$ and $D$ remain constant, what happens to the value of $x?$

The value of $x$ is halved.

The value of $x$ does not change.

The value of $x$ is doubled.

The value of $x$ is tripled.