Respuesta :

Answer:

i beleive 2 2/3

Step-by-step explanation:

the change from 9 to 13.5 is 2/3

5/3 (the whole of 4 plus 2/3 of it) of 4 is 6 2/3

6 2/3=x+4

2 2/3=x

RELAXING NOICE
Relax