Question 934260
{{{A=L*W=350}}}
.
.
{{{W/L=7/2}}}
{{{2W=7L}}}
{{{W=(7/2)L}}}
Substituting,
{{{L(7/2)L=350}}}
{{{L^2=700/7}}}
{{{L=10}}}
Then,
{{{W=(7/2)10}}}
{{{W=35}}}