Asap help pls

Which is a possible congruence statement for the following figures?

ABCD= GHIF
ABCD= FGHI
BCDA= FGHI

Write an equation for the function that includes the points (1,4/5) and (2,2/3)

Is the square root of 4 plus the square root of 16 rational?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.