Answer:
Mary will pay interest of $6000 after 10 years
Step-by-step explanation:
Principal amount P = $15000
Rate of interest R = 4%
Time period T = 10 years
[tex]SI=\frac{PTR}{100} \\SI =\frac{15000 \times 10 \times 4}{100} \\SI=6000[/tex]
Mary will pay interest of $6000 after 10 years