Sam invests $9,400 in a fund yielding 5. 2% simple interest annually. At the same time, pat shops around for a better interest rate and invests $9,400 in a fund yielding 6. 0% simple interest annually. After seven years, how much more interest has pat’s fund earned than sam’s fund?.

The answer is a looks to be the right one

It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's.