13 pts for several months, a restaurant manager collected data on the number of people at a table (p) and the total bill, in dollars (d). she found that there is a positive linear association between p and d that is best modeled by the equation d = 15.7p + 2.0. what statement is true? a) the model predicts that the average total bill for a table is $15.70. b) the model predicts that for each additional person at a table, the total bill increases by $15.70. c) the model predicts that for each additional 2 people at a table, the total bill increases by $15.70. d)the model predicts that the average bill for any table with 2 people is $15.70.