Please help The average of 10 numbers in a list is 16. if two of the numbers in the list are each increased by 5, by how much will He average of the 10 numbers in the list be increased.​

Abank manager wants to encourage new customers to open accounts with principals of at least $2,500. 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! "?