Question 545181
I'm not sure what the 5 steps are, but here's what I do:
let {{{ w }}} = length of wire in ft 
Let {{{ C }}} = cost of installation
given:
{{{ C < 95 }}}
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{{{ C = 85 + .2w }}}
{{{ 95 = 85 + .2w }}}
{{{ .2w = 95 - 85 }}}
{{{ .2w = 10 }}}
{{{ w = 50 }}}
The length of wire can be a maximum of 50 ft to
keep the cost under $95
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I'm guessing some of the 5 steps are:
(1) assign variables to unknowns
(2) establish units for all data
(3) List given data
(4) Write equations with number of 
equations = number of unknowns
(5) Solve equations