Question 1046956
This description is a linear equation application.


{{{y=mx+b}}}


y, length of walkway built
x, time in minutes
m, the work rate
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Assume time is starting at x=0; b=5 already.
m=(1/2)(feet/minute)


{{{y=(1/2)x+5}}}  or simply  {{{y=x/2+5}}}.