Answer :
Answer:
$7840
Step-by-step explanation:
Given data
P=6400
r=7%
t= 3 years
The compound interest expression is given as
A= P(1+r)^t
Substitute
A= 6400(1+0.07)^3
A= 6400(1.07)^3
A= 6400*1.225
A= $7840
Hence at the end of 3 years she owes $7840