Answer:
Tú eres menos (less) simpático que Federico.
La camarera sirve tanto (as much) carne como pescado.
Conozco más (more) restaurantes que tú.
No estudio tanto (as much as) tú.
¿Sabes jugar al tenis tan bien como (as) tu hermana?
Explanation:
These are all words used for comparisons, in English to compare something we always use "than" along with an adjective either finishing in "-er" or using "more" before the adjective. Spanish is somewhat similar, you use "que" instead of "than" and "más" instead of "more", but you can also use the opposite form to express a negative comparison, using "menos que".
