In making a forward pass through a network, activities l, m, and p are immediate

In making a forward pass through a network, activities l, m, and p are immediate predecessors for activity t, which has an activity time of 7. the early start times for activities l, m, and p are 22, 17, and 27, respectively. the early finish times for activities l, m, and p are 29, 27, and 33, respectively. what is the early finish time for activity t?