The phase velocity of a wave tells us how fast any given phase of the wave is moving e.g. the crest. If we examine some fixed position, then we can count how frequently a full wavelength passes this position as the wave moves with time. This leads us directly to $v = Î»f$.
Beverly Hills, Michigan, in Oakland county, is 3 miles N of Southfield, Michigan and 16 miles NW of Detroit, Michigan. The people of the town are in the Detroit metropolitan area.
The development was named Beverly Hills after Beverly Farms in Beverly, Massachusetts and because of the hills in the area. The first house in the subdivision was built in 1907, although sales remained slow. Beverly Hills was one of many all-white planned communities started in the Los Angeles area around this time.