Question 175744
a.) Volume of a cube with side s.
{{{V=s^3=12^3= 1728}}}
The box has 1728 cubic inches of volume.
.
.
.
b.) Length=15 (12+3),Height<12, Width is unspecified.
The volume for this box would be
{{{V=L*H*W}}}
{{{V=15*H*W}}}
{{{1728=15*H*W}}}
{{{H*W=115.2}}}
If H is less than 12, then 
{{{W>9.6}}}
There is not enough information to complete the problem. 
The height and width are allowed to vary, but should follow 
{{{H*W=115.2}}}
to achieve the same volume as before. 
Are the width and height supposed to be the same?