Let xij $=$ gallons of component i used in gasoline j$,$ where i$=1,2$ and j $=1,2.($Assume that we have two components and two types of gasoline$).$ The constraint stating that the component $1$ cannot account for more than $35\%$ of the gasoline type $1.$

Question $7$ options:

x$11+$ x$12<=0\mathrm{.}35($x$11+$ x$21)$

x$11<=0\mathrm{.}35$

x$11<=0\mathrm{.}35($x$11+$ x$21)$

$0\mathrm{.}65$ x$110\mathrm{.}35$x$21>=0$