How do I solve this? I need help

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?

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true