Please help with this Spanish work! Correct answers only. Thank you!

Which of these expressions is the most casual way to greet a friend

Mary just sent out invitations to her wedding last week the invitations were so heavy that she put more than just one stamp on each envelope she used 255 stamps and mailed out 85 invitations and see you as an equal amount of stamps on each envelope

Escoge la frase que contiene un verbo recíproco. choose the sentence that contains a reciprocal verb. los ni? os se despiertan a las 8 para la escuela. mi familia y yo nos acostamos antes de las 10. los ni? os se ayudan cuando trabajan en equipo. mi familia y yo nos lavamos las manos antes de comer.