Respuesta :

Answer:

s = 5

Step-by-step explanation:

n/10 - 4 = s

90/10 - 4 = s

9 - 4 = s

s = 5

ohsonina

Answer:

s=5

Step-by-step explanation:

n=90

90/10-4=s

(90÷10)-4=s

9-4=s

5=s