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, ...

Gail is making costumes for a school play. each rabbit costume needs one and one half yards of white fur fabric, a yard of blue striped fabric, and a quarter of a yard of pink felt for the ears. g? ail needs to make eight rabbit man yards will she need, for the white fur fabric, blue striped fabric, and pink felt?

What is the definition of exponential decay?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)