In a pyramid, the area of the base, A, is measured by the formula A=3v/h, where V= volume and h=height. Solve the formula for h

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

It would equal out to 0 i think