Answer:
Step-by-step explanation:
I believe the answer is 10 girls I'm pretty sure it is 10 girls
HCF= highest common factor
LCM= least common multiple
The correct answer is A.
You have direct variation if x and y are modeled by the equation

In this case, m is the constant of proportionality. So, if the constant has to be 2, the equation becomes

A side note: Actually, option C has a constant of proportionality of two as well, except the roles of x and y are interchanged. I chose option A because usually you want the y = mx form, but the names of the variables are obviously meaningless.