Asimple graph is called regular if every vertex of this graph has the same degree. a regular graph is called n-regular if every vertex in this graph has degree n. recall that kn is the complete graphs with n vertices. and km, n is the complete bipartite graph (see the definition in the book). (a) is kn regular? what �s the chromatic number of kn? (b) for which values of in and n graph km, n is regular? what is the chromatic number of km, n? (c) how many vertices does a 4-regular graph with 10 edges have?

The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation