Each digit in the division example has replaced with thevsame letter throughout.(r stands for remainder.) the digits used were 1,2,3,4,5,6,7, and 9. find the number. clue: u is 5

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