Ashape with 5 sided. two sides are each 5 inches long. two sides are 4 inches long .the perimeter of the shape is 27 inches. what is the length of the fifth side

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! "?