I need answers for questions a through c please. Thanks in advance.

Some IQ tests are standardized to a Normal model N(100,12). a) What cutoff value bounds the highest 5% of all IQs? b) What cutoff value bounds the lowest 40% of the IQs? c) What cutoff values bound the middle 80% of the IQs? a) The cutoff value is (Round to one decimal place as needed.) b) The cutoff value is (Round to one decimal place as needed.) c) The cutoff values are and (Use ascending order. Round to one decimal place as needed.)