Question 306829
Our local city pool charges $10/day for a visit. 
A yearly pass for an individual is $80/year. 
If you plan on making more than 8 visits a year, the yearly pass is the better deal. 
If you plan on making fewer than 8 visits, the daily pass is the better deal. 
{{{10*D=80}}}

{{{D=8}}}
8 days is the breakeven point, where both costs are identical.