Question 323610
this isnt a finance question second this is a volume question so V=LWH but since we are looking for just the area of the frame and not the picture we need to eliminate the picture area
(13-2x)(11-2x)= area of picture
so 13x11=143
143-((13-2x)(11-2x))=Area of frame
this is an expression:
 
{{{143-((13-2x)(11-2x))=A}}}