What does it mean to say that a data point has a residual of 1?

(40 points) i need some . an answer definition is appreciated as well.

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radii and altitudes is 2: 1? submit