Figure 5-7 13. a 14. 10 Supply 9 15. 8 16. ooooooooo 17. O 18. 5 19 20. 50 100 150 200 250 300 350 400 450 500 QUANTITY Refer to Figure 5-7. If, holding the supply curve fixed, there were an increase in demand that caused the equilibrium price to increase from $6 to $7, then sellers' total revenue would O a. remain unchanged. O b. The effect on total revenue cannot be determined from the given information. O c. increase. O d. decrease