Which set of transformations proves that rectangle ABCD is congruent to rectangle A'B'C'D?

What is the frequency of the sinusoidal graph?

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.

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1