Which function represents the graph ? :)

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Cody started biking to the park traveling 15 mph, after some time the bike got a flat so cody walked the rest of the way, traveling 4 mph. if the total trip to the park took 6 hours and it was 46 miles away, how long did cody travel at each speed? solve using rate times time= distance