The total distance from Timothy's house to his school was 9.18km. He travelled by bus for part of the journey and walked the rest of the way. The distance he walked was 7.95km less than the distance he travelled by bus. How far Timothy walk?​

The motion of a weight that hangs from a spring is represented by the equation h=8sin(2pi/3t). it models the weight’s height above or below the rest position as a function of time. approximately when will the object be 3 inches above the rest position?