can someone please help solve this and show work? thank you so much

Use the following information to answer questions 10 11: Rori's Bridal Shoe Company (Rori's) has provided the following data: Sales 3,000 shoes Sales price $70 per shoe Variable cost $50 per shoe Fixed cost $25,000 10. What is Rori's net operating profit for the year? a. $35,000 b. $60,000 c. $210,000 d. $185,000 e. $125,000 4 11. If the dollar contribution margin per unit is increased by 10%, total fixed cost is decreased by 20%, and all other factors remain the same, net operating income will: a. Increase by $61,000. b. Increase by $20,000. c. Increase by $3,500. d. Increase by $11,000. e. Cannot be determined from information provided