Distribution of blood pressure can be approximated as a normal distribution with mean 85 mm. and standard deviation 20 mm. A blood pressure of 125 or higher is considered high blood pressure. Approximate the percentage of people who have high blood pressure.

Abank manager wants to encourage new customers to open accounts with principals of at least $2 comma 500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?