the equation for the rational function f with: vertical asymptote at x = -2, x-4; horizontal asymptote at y = 3; x-intercepts at -1.8; and hole at x = 0. *

So don't take my word i'm not exactly a mathematical person but i would assume a. because while selling the soap every month you increase in sells so you would by 11 percent. the you would get the factor 0.89 which if i had to guess would be the monthly profit over 11 probably wrong tho