PLS ANSWER ASAP WILL MARK BRAINLIEST which expression could you use to evaluate 9^6?

A) 6 • 6 • 6 • 6 • 6 • 6 • 6 • 6 • 6

B) 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6 + 6

C) 9 • 9 • 9 • 9 • 9 • 9

D) 9 + 9 + 9 + 9 + 9 + 9

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.