Answer:
Alice's consumer surplus = $5
Jeff's consumer surplus = $16
Nicole's producer surplus = $1
Explanation:
Consumer surplus is the difference between the willingness to pay of a consumer and the price of a good.
Consumer surplus = willingness to pay - price of the good
Producer surplus is the difference between the price of a good and the least price the producer is willing to accept
Producer surplus = price of the good - least price the producer is willing to accept
Alice's consumer surplus = $30 - ($35 - $10) = $5
Jeff's consumer surplus = $20 - [$16 - (0.75 x $16)] = $16
Nicole's producer surplus = $501 - $500 = $1