The figure below shows a single consumer's demand for ice cream at the student union. If there are 1,000 students on campus during a regular semester, and each student's weekly demand for ice cream is shown above, then when the student union charges $3.00 per scoop, those 1,000 students purchase a total of ________ scoops per week.

Assume someone organizes all farms in the nation into a single-price monopoly. As a result, the amount of food produced

A) remains constant. B) decreases. C) increases. D) might increase or decrease depending on whether the demand for food is elastic or inelastic. E) might increase or decrease depending on whether the monopoly's marginal revenue curve lies below or above its demand curve.

If C + I = Y and Y - C = S, then

A) I = 0. B) S = 0. C) S = I. D) Y = S + I.