Answer :
The answer is clear when you devide both sides by (1+rt) which gives you:
[tex]p=\frac{A}{(1+rt)}[/tex]
then just change symbols to numbers a=4774, r=0.06, t=9 and count.
[tex]p=\frac{A}{(1+rt)}[/tex]
then just change symbols to numbers a=4774, r=0.06, t=9 and count.