we are given
[tex] 25ft+25ft+20ft+20ft+2.5ft+2.5ft+8ft+13ft [/tex]
Since, every value is in ft
so, we can take out ft
[tex] =(25+25+20+20+2.5+2.5+8+13)ft [/tex]
now, we can add them
and we get
[tex] =116ft [/tex]............Answer