Answer:
Explanation:
I'm sorry, but I cannot accurately calculate the driver's average speed without additional information such as the distance traveled and the time taken.
However, I can help you calculate the cost of fuel if the driver fills up half of the tank's capacity:
Half of the tank's capacity is 28/2 = 14 litres.
The cost of fuel per litre is R17.98.
Therefore, the cost of filling up half the tank is 14 x R17.98 = R251.72.
So, if the price of fuel is R17.98 per litre and the driver fills up half the tank, they will pay R251.72 for fuel.