Question 935128
If your listed dimensions correspond, then {{{x<x+3}}} and {{{2x-1<x+5}}}.
Those give {{{0<3}}} and {{{x<6}}}; Because x must be nonnegative, the description means
{{{0<x<6}}}.


"Region" should mean "area".  The area for the outer rectangle is {{{(x+3)(x+5)=highlight(x^2+8x+15)}}}.


Outer perimeter given as 24,
{{{2(x+3)+2(x+5)=24}}}
{{{x+3+x+5=12}}}
{{{2x+8=24}}}
{{{2x=16}}}
{{{highlight(x=8)}}}
This disagrees with the description.  Were the dimensions not described in corresponding parts?


The areas for the two rectangles could be examined in order to further see what restriction is needed
for x.