Eileen checks her email every day at 8am hoping to get mail from friends. Some days she gets mail; other days she doesn’t. This best illustrates which schedule of reinforcement? a) fixed ratio
b) variable ratio
c) fixed interval
d) variable interval

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

the main idea of monster inc is good and evil

if im wrong correct me but have a blessed day!

answer; ///associate's degree;

answer; ethnocentrism;