Find the are of this shape?​

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.

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

X+ y = 5 ; x - y =3 solve using linear combination