Question 547910
given:
{{{ s = t/2 + 30 }}}
here's the plot:
{{{ graph( 400, 400, -2, 20, -10, 100, (1/2)*x + 30 ) }}}
{{{s}}} is plotted on the vertical axis
{{{t}}} is plotted on the horizontal axis
Go to {{{ t = 16 }}} since 1975 + 16 = 1991
{{{ s }}} looks like about {{{38}}}