Help me please with (a) and (b)

Without graphing the linear functions, find the coordinates of the point of intersection of their graphs: y=3x−11 and y=4

Asquare is dilated by a scale factor of 1.25 to create a new square. how does the area of the new square compare with the area of the original square? a)the area of the new square is 1.25 times the area of the original square. b)the area of the new square is 2.50 times the area of the original square. c)the area of the new square is 1.252 times the area of the original square. d)the area of the new square is 1.253 times the area of the original square.

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u