To answer the problem given above, divide the difference of the prices by the original price and multiply the answer by 100%. This is, ((22450 - 19450) / 19450) x 100% = 15.42% Therefore, the percentage markup of the new car is approximately 15.42%.
using pythagorean theorem to find the hypotenuse gives √20, so the measure of the side of the square is also √20, square that to give the area of square, which is 20