Acatering firm charges a fixed cost for overheads and a price per person. it is known that a party for 20 people costs $557, whereas a party for 35 people costs $909.50. what is the fixed cost and the cost per person charged by the company?

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?