Answer:
c. The firm will make an additional $4200 in income per day if it sells taco shells instead of tortillas.
Explanation:
Tortilla daily revenue: $8000
Tortilla daily cost: $22500
Taco shell daily revenue: $26,700
Taco shell daily cost: $8000 + $4200 = 12200
Additional income if Taco Shells sold instead of Tortillas: $26,700 - 22,500 = $4200