Use RDW to solve the following problem. Lauren ran a marathon and finished 1 hour 15 minutes after Amy, who had a time of 2 hours and 20 minutes. Cassie finished 35 minutes after Lauren. How long did it take Cassie to run the marathon?
Use RDW to solve the following problem. Chef Joe has 8 lb 4 oz of ground beef in his freezer. This is of the amount needed to make the number of burgers he planned for a party. If he uses 4 oz of beef for each burger, how many burgers is he planning to make?