Sarah drove 40 miles per hour. In 3 hours, Sarah drove 120 miles. Which is a valid proportion to represent this description? 40/1 = 120/3
1/40 = 3/120
40/3 = 120/1
3/40 = 1/120

The answers are 20,30,80,180,960,890,1230,4560. on the first row

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