Which recursive definition represents the sequence {4,6,8,}

(hurry! ) which expression is equivalent to the following complex fraction?

Suppose a least-squares regression line is given by modifyingabove y with caret equals 4.302 x minus 3.293. what is the mean value of the response variable if xequals20?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?