What was the capital aztec empire ?

Does anyone know what my spanish teacher means by this? i need to use plural forms of the verb ser. and she asked me to use a couple of adjectives to describe the boys collectively and then the girls collectively?

What two types of verb is venir? regular and stem-changing transitive and stem-changing irregular and stem-changing irregular and compound

Fill in the blanks of the conversation of the correct form of the verb ser: luis y yo . a luis le gusta comer mucha carne. cree que la sabrosa. yo creo que los pescados y la carne . ¿y tú persona que come verduras o te gusta más comer carne? ¿crees que la o que ?