Select the shapes that are similar to shape a

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

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.

Here is another math questions. i will keep asking different questions. 4^2x=6