Exponential Function Compound Interest (Discrete) - Scenario to Equation

Question

Which equation describes this scenario?

A savings account starts with $2600. Each subsequent month it earns 3% in interest. After 4 months it has $2,926.

Accepted Answer

$$2,926 =2600\cdot (1+0.03)^{(4)}$$

Answer

$$2,926 =300\cdot (1+0.26)^{(4)}$$

Answer

$$2,926 =400\cdot (1+0.03)^{(26)}$$