If Emily has a 84.72 as her grade and gets a 70 on a test that is worth 20% of her grade what is her final grade?

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