Laplace Transform of multiplied term like $u(t)u(4-t)$

First of all,

If this is a two-terms function I'd be simple. It will produce

$$\mathcal{L}[u(t)]=\frac{1}{s}$$

Except, I'm not sure what to do with $u(4-t)$. If it was $u(t-4)$, it would be simpler.

Secondly,

Since these two terms are not separate. I couldn't find a property to help me deal with it.

First of all,

If this is a two-terms function I'd be simple. It will produce

$$\mathcal{L}[u(t)]=\frac{1}{s}$$

Except, I'm not sure what to do with $u(4-t)$. If it was $u(t-4)$, it would be simpler.

Secondly,

Since these two terms are not separate. I couldn't find a property to help me deal with it.