Determine whether the sequence is arithmetic, geometric, both, neither. 16,8,4,2, ... is what

An arythmetic sequence involves addition and subtraction exg

2,4,6,8,10 (+2)

10,8,6,4,2 (-2)

a geometric sequence involves multiplication or division exg

2,4,8,16 (times 2)

16,8,4,2 (divide 2)

it is a geometric sequence because it involves multiplication