I would like some assistance with the following probability question

4) Given an approximately normal distribution with a mean of 150 and a standard deviation of 30. Use empirical rule to answer the following question. a} What percent of values are within the interval (90, 219)? b} What percent of values are less than 180? d) What percent of values outside the interval (99, 210)? e) What percent of values are more than 189? 1'} According to the rule 99.9% of the data falls between which interval