The amount of money originally invested corresponds to the amount of money at time t=0, so we can find it by putting t=0 inside the equation of A(t):
[tex]A(t)=525(1+0.05)^t[/tex]
So, using t=0
[tex]A(0)=525(1+0.05)^0=525 \cdot 1 = 525[/tex]
So, the amount of money originally invested by Taber is 525.
