Respuesta :

Answer:

Enter the values in ratio format.

8 : x = 4 :2

change the ratio format to division format

8/x = 4/2

8/x = 2/1

cross multiply the values

2x = 8

x = 4

hence the 8 pencils would cost 4$

Step-by-step explanation:

Answer:

Find the common ratio of the number, then If the table in direct variation all the ratios must be equal

Step-by-step explanation:

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