Activity Normal Time (days) Normal Cost ($) Crash Time (days) Crash Cost ($) Immediate Predecessor(s) A 5 800 4 1 comma 000 minus B 5 1 comma 100 2 2 comma 900 minus C 2 600 1 900 A, B D 3 1 comma 200 2 2 comma 000 B E 3 1 comma 500 2 1 comma 700 C, D F 2 1 comma 300 1 1 comma 400 E G 3 900 3 900 E H 5 500 2 800 G a. What is the project's duration if only normal times are used? The project duration is 19 day(s). (Enter your response as an integer.)

b. What is the minimum-cost schedule? With the minimum-cost schedule, the project duration is nothing day(s). (Enter your response as an integer.)