Which is the pattern for factoring the sum of cubes​

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)