This is showing that the box on a graph. the coordinate are the numbers at the corners of the square. you need to find the length of each side. when you find the measurements, you just need to multiply the length and width together to get the area.
the answer is 600 square yards
No, he made it right on time because a quarter past 8:00 is 8:15.
(0, infinity) is your interval notation for this set.
