The richest man of all time, when wealth is measured as a percentage of the national economy, was John D. Rockefeller, whose fortunes made Gates' and Buffet's look downright puny. Keeping score of who's wealthier is like a spectator sport with Forbes magazine as its official referee.
OH NO, I am not allowed a calculator on the MCAT!!! If you reading this you have probably completed all the general requirements to take the MCAT. Thinking back over your semesters of chemistry you would of used your calculator a lot to complete the math problems ranging from the basics of stoichiometry to the complex problems of solving the pH of a weak acid.
Two very helpful keys on a calculator are AC and CE.. The first key clears the entire memory, and the second key only clears the last numbers that were imputed. The % key is used to calculate percentages. Users must press the shift key before the % key to get an accurate answer. The pi button displays the value of pi.