Amir se encuentra en un balcón y lanza una pelota a su perro, que está a nivel del suelo. La altura de la pelota (en metros sobre el suelo), xxx segundos después de que Amir la lanza, está modelada por:
h(x)=-(x-2)^2+16h(x)=−(x−2)
2
+16

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