During the month of November, the average temperature at the North Pole is -8. In the Sahara Desert the average temperature is 55. Which expression could be used to determine the difference in temperature?

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

14 pointslet x be the seats in the small van and y the seats in the large van. how many seats does the large van have? a company uses two vans to transport worker from a free parking lot to the workplace between 7: 00 and 9: 00a.m. one van has 9 more seats than the other. the smaller van makes two trips every morning while the larger one makes only one trip. the two vans can transport 69 people, maximum.how many seats does the larger van have?

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?