Def rotates 90 clockwise about point a to create d’ e’ f’. therefore, which equation must be true ?

The equation respenting the left table is

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5