Question 1118431
{{{ R = -.075t + 3.85 }}}
{{{ R < 3.7 }}}
{{{ -.075t + 3.85 < 3.7 }}}
Add {{{ .075t }}} to both sides
{{{ 3.85 < 3.7 + .075t }}}
{{{ .075t + 3.7 > 3.85 }}}
{{{ .075t > .15 }}}
{{{ t > 2 }}}
1930 + 2 = 1932 
Every year after 1932, the record will be
less than 3.7 minutes