Answer
Number of years after 2000 = 15
In the year of 2015 when the 67% of all U.S. adults will view the college education as essential for success.
Work Step by Step
Number of years after 2000 = x
Need to solve for the number of years for $67%$,we have an equations as $31+2.4x=67$
or, $2.4x=67-31$
or, $x=15$
Hence, we can conclude that in the year of 2015 when the 67% of all U.S. adults will view the college education as essential for success.
