Yes- though we may say "When will we ever use this?" ever so often in class, the reality is that we use mathematics in everyday life. From simple addition, to factoring, to finding the angles of various components to a building, math is always being used in real life.
Yup it is because if you like buy something from the store you probably don't want to get cheated out of your money. Its also important so you will know what you are actually talking about and not saying if you don't know math you don't know what you are talking about. I am saying its good to know thats all. :)
ok fking fk it ill just tell you, the most affordable way is doing it as a 4*3 package, the length will be 16, width 12, and the height 5. the area will be 960in^3, and the SA will be 664 in^2