Iwill mark brainiest is my answer is correct?

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective