Problem
Sara's income falls from $12 to $9 a week, while the price of popcorn is unchanged at $3 a bag and the price of a smoothie is unchanged at $3
What is the effect of the fall in Sara's income on her real income in terms of (a) smoothies and (b) popcorn?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.