Below are five number sequences.
3, 4, 6, 10, 18,
, , 1, , ,
, , , , ,
3, 15, 75, 375, 1875,
5, -11, -27, -43, -59,
decide whether each sequence is an arithmetic sequence (a), a geometric sequence (g), or neither (n). which of the following strings of letters correctly describes the types of the five sequences above (in order of top to bottom)?
a. nnnga
b. aggga
c. ngnga
d. agngg
e. nggga