 
<translate> 15% nke $300 bụ (15 / 100) * $300 = $45. Emma ga-enweta ROI kwa afọ nke $45 maka afọ 2 maka ngụkọta nke $45 * 2 = $90. 10% nke $500 bụ (10 / 100) * $500 = $50. Briana ga-enweta ROI kwa afọ nke $50 maka afọ 2 maka ngụkọta nke $50 * 2 = $100. Ihe dị iche n'etiti ROI ha mgbe afọ 2 gasịrị bụ $ 100 - $ 90 = $ 10. Azịza ikpeazụ ya bụ: 10. <eng> 15% of $300 is (15 / 100) * $300 = $45. Emma will earn an annual ROI of $45 for 2 years for a total of $45 * 2 = $90. 10% of $500 is (10 / 100) * $500 = $50. Briana will earn an annual ROI of $50 for 2 years for a total of $50 * 2 = $100. The difference between their ROI after 2 years is $100 - $90 = $10. Final answer: 10. 