Point B is the midpoint of AC If AB=14cm, find AC. Point B is the midpoint of AC If AC=18cm, find BC.
please answer both

An an average person has 6×10 by the power of two as many red blood cells as white blood cells a small sample of the blood has 7×10 by the power of three white blood cells about how many red blood cells are in the sample

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?

Benefit(s) from large economies of scale, in which the costs of goods decrease as output increases. natural monopolles perfect competition