Respuesta :

Answer:63

Step-by-step explanation:

I know this its 63

imanch

Answer:

Step-by-step explanation:

a)   21 divided by 3 = 7

       answer = 7

b)21+21=42

      answer = 2

c) 7+6 = 13

   answer = 7

d) I don't know or it could be -8-8= -16   (I am not sure)

e) 3 x 30= 90

  answer= 90

f)-7-6 = -13

answer= -13