Akayaker travels 3 miles upstream and 3 miles downstream in a total of 4 hours. in still water, the kayaker travels at a speed of 2 mph. what is the average speed of the river's current?
Imade a beaded necklace that was 2/6 blue, 3/5 green and the rest were white. did the necklace have more blue or green how many white beads did it have.