On a trip, a motorist purchased gasoline according to the table shown to the right. (a) What was the average number of litres per purchase? (b) What was the average cost per litre? (c) If the motorist averaged 8.37 kilometres per litre, what was the average cost of gasoline per kilometre? Gasoline Purchases 56 tres at 48.0 cents per the 64 tres at 64.5 cents per litre 70 tres at 49.5 cents per le 54 stres at 55.5 cents per re (a) The average number of litres per purchase was (Type an integer or a decimal.) (b) The average cost per litre was cents. litres (Type an integer or decimal rounded to one decimal place as needed.) (c) The average cost of gasoline per kilometre was cents. (Type an integer or decimal rounded to one decimal place as needed.) CIED