Help pls! i will give 10 points! thxs

7friends share 4 pizzas equally how much pizza did each friend get

Which graph shows a function with a range of all real numbers greater than or equal to -1

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?