The total revenue R earned per day (in dollars) from a pet-sitting service is given by R(p) = -12p + 186p, where p is the price charged per pet (in dollars). (a) Find the revenue earned for each price per pet given below. R($2) R($6) $ 324 $ 684 R($7) $ 714 (b) Find the unit price that yields a maximum revenue. $ 7.75 per pet What is the maximum revenue? $ 645 Explain. X