PLZ HELP ILL MARK U BRAINLIEST

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.

Which of the following is the shape of a cross section of the figure shown below

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct