need help with these 5 mutiple choice questions to know if they are correct.

activity network questions 1,4,5:

activity network questions 2,3:

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2.

3.

4.

5.

Given the following activity network: Given the following activity network: Activity A1 takes 5 weeks, A2 takes 8 weeks, and A3 takes 2 weeks. What is the earliest start time of A2? MulUple Choice 15 weeks 13 weeks 10 weeks 5 weeks Activity A1 takes 5 weeks, A2 takes 8 weeks, and A3 takes 2 weeks. What is the critical path? Muliple Choice A1, A2, A3 A2, A3 A1, A2 A1. A3 Activity A1 takes 5 weeks, A2 takes 8 weeks, and A3 takes 2 weeks. What is the slack time for A1? Multiple Choice 2 0 5 B Activity A1 takes 5 weeks, A2 takes 8 weeks, and A3 takes 2 weeks. What is the earliest start time of A3? Multiple Choice 15 weeks 7 weeks 10 weeks 13 weeks Activity A1 takes 5 weeks, A2 takes 8 weeks, and A3 takes 2 weeks. What is the project completion time? Multiple Choice 10 weeks 15 weeks 13 weeks 7 weeks