$1500 at 9% for 2 years what is the loan. plz me on this it's very hard i will rate best

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.

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review