cb someone help me with these answers, this is what I got but only my 1 & 0 are correct

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EX6-21 (Algo) Given the following information, compute... Given the following information, compute the early, late, and slack times for the project network. ID Duration Predecessor Additional Lag Relationships Lag B Task Interview users Define new features 10 7 Start-start A to B Finish-finish A to B 7 6 6 C D E Order components Build prototype Test 1 7 5 B Finish-start c to D Finish-start c to E Finish-finish D to E 3 F Field test 9 E 18 24 1 What is the ES for Activity D? What is the LF for Activity E? What is the slack for the start of Activity E? What is the slack for the end of Activity E? What is the slack for the end of Activity B? What is the length of the project? 2 0 32 time periods Given the following information, compute the early, late, and slack times for the project network. Additional Lag Relationships ID Lag Duration Predecessor 10 7 A B Task Interview users Define new features Start-start A to B Finish-finish A to B 7 6 D E Order components Build prototype Test 1 7 5 B C Finish-start C to D Finish-start C to E Finish-finish D to E 6 4 3 F Field test 9 E Lag 6 E A Lag 3 5 10 Lag 4 C B D F 7 1 Lag 6 7 9 Lag 7 18 24 1 What is the ES for Activity D? What is the LF for Activity E? What is the slack for the start of Activity E? What is the slack for the end of Activity E? What is the slack for the end of Activity B? What is the length of the flaject? 2 0 32 time periods