Jump Plus manga encompasses a wide spectrum. Whether a manga is seinen within Jump Plus depends on its specific content and intended readership. There's no strict rule that everything on Jump Plus is of the seinen category.
Sure, Manga Plus by Shueisha is legal. It operates within the framework of copyright laws and partnerships with the creators and publishers to bring manga to fans in a lawful manner.
Sure, Manga Plus is a legitimate option. It provides a legitimate and quality manga reading experience. You don't have to worry about any illegal or unethical aspects when using it.
Breaking Ten was a calculation method used to solve the problem of insufficient units. For the question 17 minus 7, we can first split 17 into 10 and 7, then use 10 minus 7 to get 3, and finally add 3 plus 7 to get the answer 8. Therefore, the result of 17 minus 7 was 8.