Answer: Brent repay $4152.61 to his brother.
Step-by-step explanation:
Formula to calculate compound amount : [tex]A =P(1+\dfrac{r}{4})^{4t}[/tex]
, where P= principal amount
r= rate of interest (in decimal)
t= time
As per given, we have
P= $4000
t= 3 years
r= 1.25% = 0.0125 [we divide a percentage by 100 to write in simple form]
Now, substitute these values in the formula
[tex]A=4000(1+\dfrac{0.0125}{4})^{4\times3}\\\\=4000(1.003125)^{12}\\\\=4000\times1.03815129256\\\\\approx4152.61 \ \ [\text{To the nearest cent.}][/tex]
Hence, Brent repay $4152.61 to his brother.
