Look for a Pattern If the length of each pool in the table is 20 feet, and the widths change
from 5, to 6, to 7, and to 8 feet, describe the pattern of
the areas.

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