Chigzy Limited has the following information available about fleet miles and operating costs:

Year	Miles	Operating Costs
2017	15,000	160,000
2018	16,000	155,000
2019	20,000	180,000

From the above data:

(a)What is the total variable cost and total fixed cost element of the operating costs in 2019? (b) If the budget for 2020 predicts a total mileage of 22,000 miles, what will be the predicted total mixed operating cost for the year