i still need help. using a translator won’t make it accurate so translate the ones you know please :) (numbering them will also be helpful)

What is the word for sandwich in mexico and spain

The restaurant joe's tasty burgers just created a new hamburger that they call "the joe special." they want to protect the name of the burger so that no other restaurants can claim the name for themselves. what protection will they need on the name "the joe special"? a. fair use b. copyright c. trademark d. patent

What is the meaning of calculated as it is used in this sentence from "ups and downs"? he calculated that the ride would be over before she could finish the ice cream sundae he bought her. a estimated b solved c analyzed d clarified