1003047806

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Project ID: 
1003047806
Accepted: 
1
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0
Easy: 
0
Every school must pay a registration fee for each participant it sends to a math competition. The fee for the first participant is 10 euros, for each additional one the fee is one euro less. The maximum number of participants any school can register is 10. Find the relationship between the price (c) paid by the school and the number of students registered (n).
c=n2(21n)
c=10n22
c=11n2
c=n2(10+10n)
c=n2(11n)