The average rent in a city is $1,500 per month with a standard deviation of $250. Assume rent follows the normal distribution. Use the empirical rule for normal distributions to answer the following questions.
a. What percentage of rents are between $1,250 and $1,750? (Round your answer to the nearest whole percent.)
b. What percentage of rents are less than $1,250? (Round your answer to the nearest whole percent.)
c. What percentage of rents are greater than $2,000? (Round your answer to 1 decimal place.)