\dfrac{5}{6} - 6
5
​
−start fraction, 5, divided by, 6, end fraction, minus
= \dfrac{1}{2}=
2
1
​

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! "?