I don't know this please help give brainlest

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.

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !