I’ve been trying for a long time can someone help me fix my mistakes please

Para hacer la masa, ¡ los huevos y la leche bien! a. mezclas b. mezclan c. mezcles d. mezcle

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

Choose the correct use of the spanish preposition para in the following sentence. para aprender un idioma bien, hay que practicar fuera del salón de clases. "in order to," followed by an infinitive "to," referring to a destination "by," referring to a deadline intended for a goal or destination