Answer:
Geometric
Explanation:
Arithmetic sequences are where there's a common difference. For example, in the sequence 1,2,3,4,5,6, there's a common difference of 1, showing that each term is added to 1 to get the next term. This goes for subtraction too.
Geometric sequences are where there's a common ratio. For example, in the table you gave, each term is being multiplied by 2. 6*2=12, 12*2=24, 24*2=48, and so on. The common ratio is 2 because 12/6=2, 24/12=2, and 48/24=2.
Hope this cleared things up!