B) the doldrums has very calm or no winds year round and ships that were powered by sail could be trapped for days or even weeks
<span>x^2+8x-20=0
Factor the left side of the equation
</span><span><span>(x−2)</span><span>(x+10)</span></span>=<span>0
</span>
Set the factors to both equal the number 0
<span><span>x−2</span>=<span><span><span>0
and/or
</span>x</span>+10</span></span>=<span>0
</span>x = 2 and/or x = -10
<span>I found these studies about d</span>eforestation in 2009<span>, 2/3 of the world forests were in 3 top countries: 1) </span>Russia<span>, 2) </span>Brazil<span>, 3) </span>Canada
Cenozoic Era, Mesozoic Era, <span>Paleozoic Era, Precambrian Time</span>
