At a concession stand, seven hot dogs and two hamburgers cost $16.75, two hot dogs and seven hamburgers cost $19.25. Find the cost of one hot dog and the cost of one hamburger. (separate your answers using commas)

Traffic on saturday, it took ms. torres 24 minutes to drive 20 miles from her home to her office. during friday's rush hour, it took 75 minutes to drive the same distance. a. what was ms. torres's average speed in miles per hour on saturday? b. what was her average speed in miles per hour on friday?