2. Table 2 below displays actual costs through period 6 for the same project. Please show all work for each question. TABLE 2 -- 5 10,000 5 16,000 $ 3,000 5 10,000 $ 10,000 5 12,000 5 24,000 5 12,000 a ______ ______ a. What is the cumulative actual cost at the end of week 6? b. Determine if there is a cost overrun or underrun (i.e., actual costs diverging from budgeted costs), and if so, describe which task(s) is/are causing it