A particle is moving on a straight line with velocity

Initially it is at a fixed point O on the straight line. Find the displacement of the particle after 2 seconds.

Explain how you can use the associative property to evaluate (7x50)x4.

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t

Two airplanes start at the same place and travel in opposite directions, one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?