7 Oak Island Amusements Center provides the following data on the costs of maintenance and the number of vnutors for the last three years Number of Visitors per Year (thousands) 1,890 2,070 3,450 Maintenance Costs (5000) $4,716 5,175 8,460 Required: a. Use the high-low method to estimate the fixed cost of maintenance annually and the variable cost of maintenance per visitor b. The company expects a record 2,100,000 visitors next year. What would be the estimated maintenance costs?