If $x=-4$ and $y=0.1$, find the value of $x^{2}y$

 

If $x=-4$ and $y=0.1$, find the value of $3\left(x+y\right)$

If $x=-4$ and $y=0.1$, find the value of $7y-x^2$

If $x=-4$ and $y=0.1$, find the value of ${\left(3x-y\right)}^2$

If $a=0.5, b=6, c=-9, d=-1.2$ and $e=-2$, find the value of $ab$

If $a=0.5, b=6, c=-9, d=-1.2$ and $e=-2$, find the value of $4a-2$

If $a=0.5, b=6, c=-9, d=-1.2$ and $e=-2$, find the value of $2a-c$

If $a=0.5, b=6, c=-9, d=-1.2$ and $e=-2$, find the value of $b^2+c$

If $a=0.5, b=6, c=-9, d=-1.2$ and $e=-2$, find the value of $bc+e$