PLEASE HELP ME AND DONT JOKE AROUND

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

The measure of angle 0 is 600 degrees