Bao has been notified by his electric company that his rates are going up on his graduated fee schedule. He currently pays: Standard Use Plan 6.5 cents/kWh for the first 600 kWh 12 cents/kWh for the next 600 kWh If his rates go up 1 cent in each category, find how much he will pay if he uses 875 kWh per month. Round to the nearest dollar. a. $72 b. $105 c. $66 d. $81