How does design influence the product's function?

Whats three fourths of 15(this is supposed to be in math but i clicked too fast)

This chapter lists many ways in which becoming computer literate is beneficial. think about what your life will be like once you’re started in your career. what areas of computing will be most important for you to understand? how would an understanding of computer hardware and software you in working from home, working with groups in other countries and contributing your talents.

Can someone work out the answer as it comes up in one of my computer science exams and i don't understand the cryptovariables