1-Define cost Accounting and enlist 10 example of product cost with explanation 2-Define period cost and enlist 10 examples 3-Define variable cost, fixed cost and mixed cost and enlist 10 examples of each category 4-Define Sunk cost and opportunity cost and enlist 10 examples of each cost. 5- You need to develop one numerical question from yourself and then find variable cost, fixed cost and total cost by using equation (Y=a + bx) with high low method