Question 1061657
Total length of fence material is the perimeter of the backyard.

{{{(2*40+2*25)feet}}}
{{{2(40+25)feet}}}
{{{130*feet}}}


What is the horizontal dimension of one 30-INCH panel?
{{{2&1/2}}}, FEET.


Measurement of perimeter or of fence length is ALONG THE GROUND, so how many of these  {{{(2&1/2)FEET}}} lengths will fit in this required fence length?


{{{highlight(130*feet*(1/2&1/2)(panel/feet))}}}, this is how many panels.
Can you simplify and compute this?