Respuesta :

2,6,18

r = 6/2 = 3

18 *3 = 54

54*3 = 162

162*3=486

Answer: 54,162,486

I think your suppose to multiply it by 3 because 2*3is 6 and 6 times 3 is 18 then 18 times 3 is 54*3 is 162 and 162*3 is 486