PLEASE HELP

Only 3 1 and 2 Only 2 1,2 , and 3 Only 1 1 and 3 Only 4 3 points If Miranda Railroads reduces its ticket prices by 9%, profit will increase by 9%. its fixed costs will decrease. a profit can only be earned by decreasing the number of train rides. a profit can be earned either by increasing the number of passengers or by decreasing variable costs. Which type of costs are these? Services costs and upkeep are both mixed. Upkeep costs and services are both variable. Services are mixed and upkeep costs are variable. Upkeep costs are mixed and services are variable