The perimeter of a triangle is 30 units. if it is dilated with respect to origin by a scale factor of 0.5, what is the perimeter of the resulting triangle?

You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

How do i do this? i don’t understand

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function