Oak Island Amusements Center provides the following data on the costs of maintenance and the number of visitors for the last three years: Number of Visitors per Year: (thousands) 1,830 2,010 2,700 Maintenance Costs ($000) $2,316 2,559 3,360 Required a. Use the high-low method to estimate the fixed cost of maintenance annually and the variable cost of maintenance per visitor. (Enter your answers in dollars not in thousands of dollars. Round "Variable cost" answer to 2 decimal places.) Variable cost per visitor Annual fixed cost b. The company expects a record 2,000,000 visitors next year. What would be the estimated maintenance costs? (Enter your answer in dollars not in thousands of dollars.) timated maintenance costs