Answer :

Answer:

1)8

2)4

3)5

4)6

Step-by-step explanation:

(1)20/4  = 5(scale factor)

  40/5 = 8

(2)56/8 = 7

   28/7 = 4

(3)28/4= 7

   35/7 = 5

(4)21/3 = 7

   42/7 = 6

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