4.
f
1+
+ 2 + 2 + 2 +
+ = x; determine the value of:
1+1/4 +1/16+1/36+1/64

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! "?