Respuesta :

laurellee27

Answer:

7 / 3

Step-by-step explanation:

The difference between 18 and 9

18 - 9 = 9

Divide 21 by the difference between 18 and 9

21 / (18 - 9)

21 / 9

7 / 3

shilohobrien27

Answer: 2 remainder 3

Step-by-step explanation: First, subtract 18 from 9.

18 - 9 = 9

Then do 9 divided 21.