Will give brainliest to whoever answers right first, the answers should be written like (5,0) (8,0) 4,5) etc.. please and thanks!

The answer should be c.

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