Problem $2$: Five restaurants

You have a choice between five restaurants that differ from each other regarding their food quality

$($measured in the number of stars ${?}^{**}$ the restaurant received in customer reviews, from one $-$lowest quality$-$ to five $-$highest$-)$ as well as their price.

$\backslash$table$[[$Restaurant$,$Quality,Price$],[1,********,$$$30],[2,*****,$$$25],[3,**************,$$$50],[4,********,$$$20],[5,**,$$$5]]$

How many restaurants are pareto$-$dominated?

Restaurant $3,4$ & $5$ are on efficient frontire.