What are useful for comparing amounts over a period of time . a. pie charts b .maps c. diagrams .d. line graphs

in the thematic approach, an interpreter relies on a central theme (i.e., a major point or message) to guide development of a communication activity or device. in presenting the activity or device, the thematic interpreter develops the theme in such a way that it will be highly relevant to an audience.

explanation:

kellan is struggling with the amount of work he has to do

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