In spanish what do students refer to their classes in terms of rather than ?

What is the discriminat of 3x^2+6x=2

What can you look through when you daydream?

Frank is from atlanta and maria tuberto barbero is from ciudad de méxico. they became pen pals and communicate by phone because they love to talk in addition to communication through emails. based on what you learned , how would frankk dial maria’s phone numbers when he talks to her