Respuesta :

I believe the answer Is 4.12

NES718
K=4.12
18.56=6.2 + 3k
18.56-6.2 = 6.2 -6.2 + 3k
12.36 = 3k
12.36/3 = 3k/3
4.12 = k
RELAXING NOICE
Relax