Rome grew as an empire by fighting and trading. In the beginning, Rome fought small battles with neighbouring tribes who they had arguments with. These victories cause Rome to become confident in their army and began using that as an advantage to take over land rather than Defending themselves. Rome was very wealthy after winning so many battles that people that had problems with small tribes would make an alliance with with them.
Side of square = x+3
Area of a square = side^2 = (x+3)^2 = x^2+6x+9
The plates colliding causing the rock to push upward. Hope this helped you out!
