(a) A car consumes a gallon of petrol for every 30 km drive. The driver of the car set out on a journey of 420 km with 10 gallons of petrol in the fuel tank.
(i) How many more gallons of petrol will be needed to complete the journey?
(ii) Find the cost of the petrol used for the journey of 420 km if a gallon of petrol costs GH¢5.50

(b) The average number of spectators at a football competition for the first five days was 3,144. The attendance on the sixth day was 3,990. Find the
(i) The total attendance on the first five days
(i) The average attendance for the 6 days

(c) The area enclosed by a square garden is 121m². What is the distance around the garden?