The given formula for the amount $A$ in the account is:

$A = 1775 \left(1 + \frac{0.09}{12}\right)^{12t}$

In this formula, $0.09$ represents the annual interest rate. Since it's stated as $0.09$, the annual interest rate is:

$0.09 \times 100 = 9\%$

Thus, the yearly interest rate on this account is 9%.

Would you like more details on how this formula works, or do you have other questions? Here are some follow-up questions you might consider:

1. How does quarterly compounding affect the total amount in the account?
2. What would be the amount in the account after 2 years?
3. How does the interest rate compare to other common savings accounts?
4. What factors should one consider when choosing a savings account?
5. How would the total amount change if the interest rate were higher?

Tip: Always compare the effective annual rate (EAR) when considering different compounding periods.