Consider the western hills shopping center project summarized by figure 13.6 and table 13.2. suppose the project has been underway for seven weeks. activities a and e have been completed. activity f has commenced but has three weeks remaining. activities c and d have not started yet. activity b has one week remaining (it was not started until week 2). update the activity schedule for the project. in particular, how has the slack for each activity changed?

Ithink its 3! hope it : -)

Ihear he caught ligma

Combining the emissions released by fossil fuel burning and  the carbon released via land use change, we get a total of 8.7 gt. since the problem states that the oceans "take up" or sequester  2.4 gt carbon  per year, we subtract that value from 8.7 gt, leaving us with 6.3 gt of carbon. since the problem states that 3.4 gt carbon dioxide emissions end up in the atmosphere, the "missing sink" of carbon takes up 2.9 gt, a value we got by subtracting the 3.4 gt amount recorded from the 6.3 gt carbon left available after the oceans sequester the carbon dioxide.