PLS AWNSER ILL GIVE BRAILIEST

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.

Factor the monomial completely 42a3b3

Which number completes the inequality? 2/3 < _ < 7/9