Given the polynomials p(x) and g(x), which of these are guaranteed to be polynomials, too? Select all that apply.
p(x) · g(x)
p(x) - 9(x)
p(x) + 9(x)
p(x) = g(x)

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