Explanation:
I am not sure what you mean by "sort". that would mean to bring them into a certain sequence.
I think you mean "categorize".
the first one is arithmetic.
the added constant is -4.2
98.3 - 4.2 = 94.1
94.1 - 4.2 = 89.9
...
the second one is neither.
it looks like first to be arithmetic with the added constant of -1.
1 - 1 = 0
0 - 1 = -1
but then
-1 - 1 = -2 and not 0.
the third is geometric.
the ratio or multiplication factor is 2.
1.75 × 2 = 3.5
3.5 × 2 = 7
...
the fourth is arithmetic.
the added constant is 1.2.
-12 + 1.2 = -10.8
-10.8 + 1.2 = -9.6
...
the fifth is geometric.
the ratio of multiplication factor is -1.
-1 × -1 = 1
1 × -1 = -1
...
if you really need to sort them (change their positions in that 5 elements list), then
the 1st and 4th are arithmetic (to be put into the top 2 spots).
the 3rd and 5th are geometric (to be put into the next 2 spots).
the 2nd is neither (last spot).