Hello, could someone help me to see why the program is not pulling or what is missing please https://code.sololearn.com/cZnx62J

Question

https://code.sololearn.com/cXqxPzYCsf18/?ref=app

Answer 1

Line 14 alto not algo.
Volumen is not a method(at least not yet) so remove these ( )

Answer 2

Thank you