In the results of the most recent exam taken in the business research class, the average score was a 74.4. More students earned a 78 than any other score and half the grades were above 72 and half the grades were below 72. The mean for the exam score is.

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