Question 1014994
I know how to solve it but now I have to put it in interval notation. 

A amusement park charges a flat rate of $ 99 for a birthday party plus $9.00 for each person.  If you have $175 to spend, at most how many people can attend the party?
<pre>Number of people (N) who can attend for $175: {{{N <= 8.444}}}, which is saying that 1 - 8 people can attend, or in interval notation: {{{highlight_green(matrix(1,1,"[1, 8]"))}}}.
Zero people cannot be considered. If you want to know why, just ask yourself, "Would I pay $99 if no-one will attend?" 
Unless, of course, there's a contract that states otherwise!