21) Determine the information missing from Table 7.7; then answer the following questions. How many week(s)…

21) Determine the information missing from Table 7.7; then answer the following questions. How many week(s) of crashing are available for activity D in Table 2.9?
22) How many week(s) of crashing are available for activity B in Table 7.7?23) How many weeks of crashing are available for activity C in Table 7.7?
24) What is the crashing cost per week for activity A in Table 7.7?
25) What is the crashing cost per week for activity E in Table 7.7?
26) What is the crashing cost per week for activity F in Table 7.7?
27) If a decision is made to crash activity D in Table 7.7 by one week, what is the cost for this one week of crashing?
28) Which activity should be crashed first for the project shown in Table 7.7?