please show all steps for part 1,2,3

We Deliver operates a fleet of delivery trucks in Halifax. Analysis shows that if a truck is driven 105,000 kilometres during a year, the average operating cost is 11.4 cents ($0.114) per kilometre. If a truck is driven only 70,000 kilometres during a year, the average operating cost increases to 13.4 cents ($0.134) per kilometre. Question 1 (1 point) Required: 1. Using the high-low method, estimate the variable and fixed cost elements of the annual cost of truck operation Question 2 (1 point) Express the variable and fixed costs in the form Y - a+bX Question 3 (1 point) If a truck was driven 80,000 kilometres during a year, what total cost would you expect to be incurred