This class is supposed to be senior math but I think it's actually algebra?? The title says these are algebra questions.

This is the question I'm stuck on:
A bank account has a beginning balance of $560.00. After 6 months, the balance in the account has increased to $572.60. What interest rate is being earned annually on this account?

A: .045%

B: 2.20%

C: 2.25%

D: 4.5%

Question

This class is supposed to be senior math but I think it's actually algebra?? The title says these are algebra questions. 

This is the question I'm stuck on: 
A bank account has a beginning balance of $560.00. After 6 months, the balance in the account has increased to $572.60. What interest rate is being earned annually on this account?

A: .045%

B: 2.20%

C: 2.25%

D: 4.5%