Answer:
=
$
518.01
Explanation:
compound interest formula $A = P*(1+R)^n#
P
=
$
400
,
r
=
.09
,
n
=
3
Substituting the values, we get A =
400
⋅
(
1.09
)
3
=
$
518.01
From my alt account from, https://socratic.org/questions/how-much-would-400-invested-at-9-interest-compounded-continuously-be-worth-after
