8hours and 12 minutes plus 3 hours in 15 minutes

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.

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

Select all the expressions that will include a remainder.