Hello, I am having difficulty solving calculus questions. It i

Hello, I am having difficulty solving calculus questions. It is simple basic questions. However, you do need a reminder if you have not solved calculus questions for awhile. Please note that I can only provide 3 to 4 hours. IF in need of more hours please...

A box is to be constructed from a sheet of cardboard that is

A box is to be constructed from a sheet of cardboard that is 20 cm by 60 cm, by cutting out squares of length x by x from each corner and bending up the sides. What is the maximum volume this box could have? ...