A and B in algebra stand for any variables of real numbers. A real number is a value of a continuous quantity that can represent a distance along a line. So if you see A and B in doing your algebra it is just a representation of a value that you need to find.
Answer:
Between these options, we can say only A. is true.
Explanation:
"Fuente escrita" is a documentary source commonly used as a source for stories.
"Fuente auditiva" refers to what we hear, to oral communication.
What can be said about both is that the written source presents doubts about the origin of a phenomenon and the auditory source does not.
1. El
2. La
3. Los
4. Las
5. Las
