Emanuel saved of the amount he needs to buy a $80 video game. If he earns $8.10 per hour by working at a
pizza shop, how many hours does he need to work to earn
the rest of the money for the video game?

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