Which statement is true of this graphed function

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?

If i have a 24 in loaf of bread and i cut it into two pieces one 9 in how long was the other

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0