Delbert makes homemade salsa and sells it at his roadside produce stand. Delbert's weekly cost for making salsa can be determined using the equa- tion C=2.75j+40, where C represents the cost in dol- lars and j represents the number of jars of salsa made. a) Determine Delbert's weekly cost for making 20 jars of salsa. b) Determine Delbert's weekly cost for making 50 jars of salsa. c) How many jars of salsa would Delbert need to make for his cost to be $205?