Given:
Principal, p=$5,200
Interest rate, r=1.75%
Years, t=15 years
To fnd the interest amount:
Using the simple interest formula,
[tex]\begin{gathered} SI=\frac{p\times r\times t}{100} \\ =\frac{5200\times1.75\times15}{100} \\ =1365 \end{gathered}[/tex]Hence, the answer is, $1,365.