In a theater, there are 4 long rows of chairs, each with an equal number of chairs. There are 5 short rows of chairs, each with
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Rileyflipflop, 
= 8 
, since she can't buy half a CD, she's limited to no more than 8 CDs. If x = the cost of one CD, then x CDs cost $18x. Since we are limited to $153, our equation looks like... 18x < 153x < 8 Again, since we can't buy half a CD, your answer should actually be... x ≤ 8 since we can buy 8 CDs or fewer.