yo i really need help please in order to pass this i’ll give a brainliest to anyway who knows the correct answer please no links

yo i really need help please in order to pass this ill give a brainliest to anyway who knows the correct answer please no links class=

Respuesta :

all i know is that it would not be 13.9

Answer:

12in

Step-by-step explanation:

this is the only subject i'm good at in math XDDD.