Can yall give me 5 more brainelest pls

There should only be 1 solution

I’m confused this is what i’m doing in class but the question is confusing

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