It seems like you are working on a project management problem. You need to determine the critical path and total project completion time for the custom-designed Rover 6 car. The critical path includes activities B, C, D, F, H, K, L, M, N, O, P, Q, and R. The total project completion time is 24.5 days. To complete Rover 6 two days earlier, you should shorten the duration of activity C by 2 days. To reduce the project duration, you should borrow resources from activities C, G, and J to speed up activities on the critical path.