Here is one way I learned from teacher take 267 and ÷ by 3 and there are three part and if you do it right you might have a left over so and take one of those three ÷ and see how much you have left and × it by 2
Solution:
The standard equation of a hyperbola is expressed as

Given that the hyperbola has its foci at (0,-15) and (0, 15), this implies that the hyperbola is parallel to the y-axis.
Thus, the equation will be expressed in the form:

The asymptote of n hyperbola is expressed as

Given that the asymptotes are

This implies that

To evaluate the value of h and k,
12 boys. 7 * 3 is 21. 21 girls. 4*3 is 12. 12 boys 21 girls
Eliminate A immediately, because "367,259 < 364,798" is false.
Elim. C because "367,313 < 367,259" is false.
Thus, B is the correct answer.