Fern is checking IDs to get into an R-rated movie. She denied 20% of the 120 kids from Riverside High, 70% of the 90 kids from West Side High, and half the 50 kids from Mountaintop High. How many kids got into the movie?
First find how many kids from Riverside High are rejected: 20% * 120 kids = 
<gadget id="calculator">20*.01*120</gadget>
<output>24</output>
24 kids.
Then find how many kids from West Side High are rejected: 70% * 90 kids = 
<gadget id="calculator">70*.01*90</gadget>
<output>63</output>
63 kids.
Then find how many kids from Mountaintop High are rejected: 50 kids / 2 = 
<gadget id="calculator">50/2</gadget>
<output>25</output>
25 kids.
Then add the number of kids from each school to find the total number of kids: 120 kids + 90 kids + 50 kids = 
<gadget id="calculator">120+90+50</gadget>
<output>260</output>
260 kids.
Then subtract all the kids who were rejected from the total number of kids to find the number who got in: 260 kids - 24 kids - 63 kids - 25 kids = 
<gadget id="calculator">260-24-63-25</gadget>
<output>148</output>
148 kids.

<result>148</result>