16 cups of milk to make mango milkshakes if one pint is equal to 2 cups how many pints

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.

This is so hard and it’s for a test

Find the area of the regular hexagon if a side is 20 cm.