Exponential Function Solution Equation - Growth (Discrete, Mis-matched Time Units) Equation to Starting Value

Question

Rearrange this equation to solve for the starting cash given this model of a yearly compounding growth of money in a savings account?

$$850 =P_0\cdot (1+0.05)^{(\frac{16}{4})}$$

Accepted Answer

$$P_0 = \frac{850}{(1+0.05)^{\frac{16}{4}}}$$

Answer

$$P_0 = \frac{850}{(1-0.05)^{\frac{16}{4}}}$$

Answer

$$P_0 = 850 \cdot (1+0.05)^{16 \cdot 4}$$

Practice: Exponential Function Solution Equation - Growth (Discrete, Mis-matched Time Units) Equation to Starting Value