Please need help show clear work with calculation thank you…. calculate the latest start for Task D if one of its successors, task F, has a latest

Please need help show clear work with calculation thank you….

calculate the latest start for Task D if one of its successors, task F, has a latest start on day, 12, its other successor, task, has a latest start on day 12, and the duration of Task D is 2 days

"Get 15% discount on your first 3 orders with us"
Use the following coupon
FIRST15

Order Now