Concerning PERT and CPM: Multiple Choice These are two different names for essentially the same technique. CPM tends to focus more on the critical path; PERT focuses on the parallel paths. PERT gives a clearer indication of activity slack, while CPM gives a better picture of path slack. Because of its recent discovery, much less is known about CPM than PERT. CPM is useful for project manager selection; PERT is useful for project team selection.

The business cycle is the periodic but irregular up-and-down movement in economic activity, measured by fluctuations in real gross domestic product (gdp) and other macroeconomic variables. a business cycle is typically characterized by four phases—recession, recovery, growth, and decline—that repeat themselves over time. economists note, however, that complete business cycles vary in length. the duration of business cycles can be anywhere from about two to twelve years, with most cycles averaging six years in length. some business analysts use the business cycle model and terminology to study and explain fluctuations in business inventory and other individual elements of corporate operations. but the term "business cycle" is still primarily associated with larger (industry-wide, regional, national, or even international) business trends.

Well we first have to know what the down payment  will cost and how much the apartment will be costing.