I need help asap please

Now that you have worked through a lot of material that includes these basic patterns, and you have compared grammatically correct and incorrect sentences, write down what you think is a rule that could explain what makes a sentence grammatically correct or not. for example, you might write something like: "verbs always match nouns in number, and they usually come before the noun." in other words, make your best guess for the grammar rule that makes sense out of the pattern(s) you see in the phrases you have been working with. review if you need to, and you might briefly check your hunches against the sentences you have been working with in this or previous modules. keep in mind that what you're after is your hunch, not a grammar rule from a text book. now check your hunch with the explanation of this principle in the following pattern.

#1-20 ! worth 25 pts, teacher didn’t explain! answer the following questions using direct or indirect object pronouns 1. les escribes a tus padres mucho? 2. tus padres te llaman todas semanas? 3. puedes guardarme un asiento en la clase? 4. conoces presidente de la universidad? 5. saben uds. cuál es la capital de costa rica? 6. za qué hora haces la tarea? 7. siempre entiendes la gramática? 8. me puedes explicar el capítulo 9. dónde compras tus libros de texto? 10. pagas tus libros con cheque o con tarjeta de crédito? 11. ves al profesor (a la profesora) cinco días a la semana? 12. qué le gusta hacer a tu mejor amigo/a? 13. les prestas dinero a tus amigos? 14. les das tu número de teléfono a los compañeros de clase? 15. cuándo ves a tus amigos? 16. quieres la nueva película de ron howard? 17. illamas a tus amigos por teléfono todas las noches? 18. tus amigos te invitan a comer con frecuencia? 19 preparas el desayuno todos los días? 20. nos invitas a tu fiesta de cumpleaños? 21., me recomiendas la última novela de stephen king? 22. siempre le dices toda la verdad (truth) a tu mejor amigo/a? background info: my school is small, and i have each class 2 or 3 times a week. i know the president.i dont write to my parents i call them sometimes. i do my homework in the evening. i buy my books with credit card. i dont know the capital of costa rica. i like my friends because they give advice i lend money in emergencies. i dont want to see rons new movies. my friends and i eat together a lot i dont make breakfast everyday

What is the spanish word for the number that follows 554? a. cincuenta y cinco b. quinientos cincuenta c. quinientos cincuenta y cinco d. quinientos cincuenta y cuatro