Answer:
It will purchase 3 cans
total consumer surplus 0.70
Explanation:
the market price is 0.55
It will purchase up to three cans. the fourth can he is willing to purchase at 0.40 but the price is 0.55 so it won't trade for that one.
consumer surplus:
difference between the amounts he was willing to pay for each unit and the market price:
first can 0.95 - 0.55 = 0.40
second can 0.80 - 0.55 = 0.25
third can 0.60 - 0.55 = 0.05
total consumer surplus 0.70
