Write the answer without using exponents? -9^3

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.

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

How many ordered pairs of positive integers satisfy xy=32?