Perform the following operations on the vectors $\vec{u} = \left<-3,1,-3\right>$, $\vec{v} = \left<3,5,0\right>$, and $\vec{w} = \left<-3,2,-1\right>$.

$\vec{u} \cdot \vec{w} =$

$(\vec{u} \cdot \vec{v}) \vec{u} =$

$((\vec{w} \cdot \vec{w}) \vec{u} ) \cdot \vec{u} =$

$\vec{u} \cdot \vec{v} + \vec{v} \cdot \vec{w} =$