Tim installs 50 square feet of his floor in 45 minutes. At this rate, how long does it take him to install 495 square feet?

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