 
 <translate> 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. <hau> 15% na $300 shi ne (15 / 100) * $300 = $45. Emma zai sami ROI na shekara-shekara na $ 45 na shekaru 2 don jimlar $ 45 * 2 = $ 90. 10% na $500 shi ne (10 / 100) * $500 = $50. Briana za ta sami ROI na shekara-shekara na $ 50 na tsawon shekaru 2 don jimlar $ 50 * 2 = $ 100. Bambanci tsakanin ROI bayan shekaru 2 shine $ 100 - $ 90 = $ 10. Amsar ƙarshe: 10. 