Okyerefo Company Ltd. manufactures okyerefo soap. The product is sold in three com- munities, X, Y and Z. The supply function schedules of the three communities as well as that of the entire market supply for okyerefo soap are shown below. Unit Price 100 250 Community X 520
725
Community Y 640
850
Community Z 700 1000
Market Supply 1860 2575
Use the information in the table to estimate
i. the supply equations of each of the three communities.
ii. the market supply function.
iii. market supply when the price decreases to 50