Kayla is having her birthday party at a movie theater. The fee to rent the theater is $125 for a party of 20, plus $6 for each additional guest. Kayla invited her 25 classmates and the 7 girls in her dance class, as well as 13 family members. Only 4 people said they could not come. How much will the party cost?
Kayla invited 25 classmates + 7 dance class friends + 13 family members = 
<gadget id="calculator">25+7+13</gadget>
<output>45</output>
45 people invited.
Of the 45 people invited - 4 people cannot come = 
<gadget id="calculator">45-4</gadget>
<output>41</output>
41 people attending the party.
Of the 41 people attending - 20 are included in the fee = 
<gadget id="calculator">41-20</gadget>
<output>21</output>
21 additional guests not included in the fee.
The cost for 21 additional guests is 21 x $6 = $
<gadget id="calculator">21*6</gadget>
<output>126</output>
126.
The total cost for the party is the $125 fee + $126 for additional guests = $
<gadget id="calculator">125+126</gadget>
<output>251</output>
251.

<result>251</result>