$150
<h3>
Further explanation</h3>
<u>Given:</u>
- Jack collected 18 ten dollar bills while selling tickets for a show.
- He gave
of the bills to the theater and kept the rest.
<u>Question:</u>
How much money did he keep?
<u>The Process:</u>
From the information above, let us create a suitable diagram as follows:

Let us calculate how much money did he keep.
Notice that he gave 1 unit of the bills to the theater and kept 5 units the rest.



Thus he kept $150 the rest.
- - - - - - - - - -
<u>Quick Steps:</u>
Jack gave
of the bills to the theater and kept the rest.




Thus he kept $150 the rest.
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Keywords: Jack, collected, 18 ten dollar, bills, while selling, tickets, for a show, he gave, 1/6, the bills, to the theater, and kept the rest.