HELP PLEASE no one would answer pleasee

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

17 in long 1.3 ft wide and 8in high what is the volume

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?