Step 1: Think of any number. Step 2: Double the number.
Step 3: Add 5.
Step 4: Double your new number.
Step 5: Subtract 6.
Step 6: Divide by 4.
Step 7: Subtract your original number.
Did you get 1? Use algebra to show why this works.

PLEASE HELP MEE

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