HELP PLS! I need the answer And I don't know how to get it can u explain ur answer ?

(if f(x)=4x^2 and g(x)=x+1, find (f o g)(x)

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

Elizabeth is using a sample to study american alligators. she plots the lengths of their tails against their total lengths to find the relationship between the two attributes. which point is an outlier in this data set?