An earthquake with a reading of 6.4 on the Richter scale occurs in Peru. Another earthquake strikes the coast of California and measures 4.5 on the Richter scale. Approximately how many times greater is the magnitude of the Peru earthquake

What are the choices

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