Solve the problem. See Example 9.
Public school enrollment. The expression
can be used to approximate in millions the total enrollment in public elementary and secondary schools in the year 1985 + x (National Center for Education Statistics, www.nces.ed.gov).
a) What was the public school enrollment in 1992?
b) In which year will enrollment reach 50 million students?
c) Judging from the accompanying graph, is enrollment increasing or decreasing?
Figure for Exercise 97
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