The table below gives the millions of White non-Hispanic individuals in the U.S. civilian non-institutional population 16 years and older for selected years from 1980 and projected to 2050.

(a) Find a logarithmic function that models the data, with x equal to the number of years past 1970 and y equal to the White non-Hispanic population, in millions.

(b) Graph the function and the data on the same set of axes.

(c) What does the model predict this demographic group's population to be in 2043?

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Year Millions Year Millions 2020 2030 1980 136.8 166.3 146.5 168.8 1990 153.1 2000 2040 169.7 2010 162.1 2050 169.4 2015 164.6