If i was born in 1991 how old would i be. sorry but i dont feel like doing the math

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.

(60 points) explain this in detail