We have that 12x² = 18x------> 12x²-18x=0-----> divided by 12----> x²-(3/2)*x=0 this is the equation of a vertical parabola x²-(3/2)*x=0-----> x*(x-1.5)=0 the x-intercepts of the parabola are x=0 x=1.5
It means it is asking for a large number so it can represent more of the population because the larger the number the more percent of population so the answer would be A