Which of the following is an arithmetic sequence?–20, –25, –30, –35, –45, ...–15.6, –12.9, –10.2, –7.5, –4.8, ...3.1, 6.2, 12.4, 24.8, 49.6, ...7.2, 3.6, 1.8, 0.9, 0.45, ...

B) -15.6,-12.9,-10.2,-7.5,-4.8

This is an arithmetic sequence.