A=B+C
2A=54000
A=27000 seats $30/seat=$810000
B+C=27000
24B+18C=571200
24B+18(27000-B)=571200
24B+486000-18B=571200
6B=85200
B=14200
C=12800
A=27000 seats, B=14200 seats, C=12800
456 divided by 100 is 4.56 So N=100
First, let's find how many students are boys. We do this by multiplying 24 by 1/2.
24*1/2=12. Now, we find how many of the boys have brown hair. We do this by multiplying the number of boys, 12, by 1/3.
12*1/3 = 4. So, 4 boys have brown hair in Ms. Woodall's class.
The answer is C, because those are the points that cross the x-axis.
It would be a combustion reaction