mike sister kellie is 4 years older than he is let m be mike age and let k be kellies age, which equation represents the situation

Idon't understand what i am supposed to do,can someone translate ? it says: berechne.runde sinnvollbtw it's math: /

You've learned about a few different countries so far this semester. choose a country that you have studied and write a short paragraph in german about that country. some ideas you might consider: the location description cultural differences cultural similarities well-known products from that country typical foods historical figures any other interesting facts about that country your paragraph should be 4-6 sentences long.

Memeee for my german homework eehe