Learn German: Der Chef arbeitet viel und wird reich. - The boss works a lot and gets rich.

The verb werden (to become/get) is irregular. In the present tense, the 'e' changes to an 'i' for the du (you) and er/sie/es (he/she/it) forms. Since der Chef is a 'he', we use the form wird.

English uses 'get' for both 'get rich' and 'get a present'. Are they the same in German?

No, and this is a very common trap! In German, you must use werden when 'get' means 'to become' (like getting rich, old, or tired). When 'get' means 'to receive an item', you must use a different verb: bekommen.

Does der Chef mean the head cook here?

Usually not! Der Chef is a 'false friend' and means 'the boss' or 'manager' in German, no matter what kind of company it is. If you want to talk about a professional cook, the German word is der Koch.

Why doesn't the adjective reich have an ending here?

Adjectives in German only take extra endings when they are placed directly in front of a noun (like ein reicher Chef). When they come after verbs like sein (to be) or werden (to become), they stay in their basic dictionary form without any endings.

Do I need to say 'und er wird reich' to include the subject again?