How is the modern era different from the middle ages?

There is a lot of answers to that question depending on what your studying in particular. You may want to research about the different types of clothing, technology, jobs, etc. I’m sorry I couldn’t give u a simple answer but I didn’t really understand what this question was referring to. I hope this at-least helped guide you :)

12 days because 1/4 is 25% of 100 if 100 is equal to 1 pound then multiply 3 by 4 which equals 12