questions

Question 18 If both price and quantity traded rises in a market then it must be that Not yet answered Select one: Marked out of O a. supply has shifted to the left. 1.00 Flag O b. supply has shifted to the right. question O c. demand has shifted to the left. O d. demand has shifted to the right.Question 4 Assume that Jane cleans Joe's house weekly for $80. Joe would be willing to pay as much as $120 weekly to have his house Not yet cleaned. Jane would be willing to clean it for $60. If Jane cleans Joe's house, the producer surplus is $ ? answered Marked out of Select one: 1.00 O a. 80 Flag question O b. 120 O c. 40 O d. 20