Hi, can someone help me understand how to do this. I tried and I got confused and I was confident my answers were right but I got them wrong. These problems have to do with Quadratic applications I believe.

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.

Adistribution has the five-number summary shown below. what is the third quartile, q3, of this distribution? 22, 34, 41, 55, 62

4. a single woman uses an online cash flow calculator which reveals a cash flow of 203. what does this mean?