In one state a few years ago, the mean salary for high school teachers was $82,610 with a standard deviation of $9,520. Assume the salaries follow a normal distribution. a. What percent of teachers earn less than $61,000? (Round intermediate calculations to 2 decimal places and final answer to 2 decimal places.) b. What percent of teachers earn between $76,000 and $91,000? (Round intermediate calculations to 2 decimal places and final answer to 2 decimal places.) c. What percent of teachers earn between $71,000 and $76,000? (Round intermediate calculations to 2 decimal places and final answer to 2 decimal places.)