You are doing a walkathon/runathon to raise money for your school. You can walk at a rate of 4 miles per hour and run at a rate of 6 miles per hour. You need to cover more than 8 miles in order to raise your part
of the money. Which of the following linear inequalities can be used to determine how long you must walk
(w) and run (c) in order to cover more than 8 miles?
4w + 6 = 8
4w + 6r > 8
4w + 6r > 8
4w +6r < 8