How do you write 5.2 trillion in standard notation?

If your annual salary was raised from 12000 to 14000 what percentage increase does that represent? What is the Present value of 700 to be received in two installments of 350 two years from today at a discount rate of 10 percent? A downhill skier can travel 75 miles per hour how long would it take the skier to travel 150 miles at that speed? What is three seventh times nine? What is the number to complete the pattern 66 73 13 21 52 10 20? For what value of x would the quotient 3x4 plus 6x3 3x2 not make sense? How old is 10 years old in minutes? How do you answer by expanding brackets? In geometry what is the shape of the buckyball called? What the correct way to write an ordered pair of coordinates? Is agri a suffex or root? What is 20000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000? Is commutative property 8 plus 6 equals 6 plus 8? Is 600 2 the expanded form of 632 Explain how you know? Rules of stability in writing letters and numerals? What is that LCM of 35 14 and 7? How easy is it to break into combination safes? What does the Roman Numeral MDCCXI represent? What is the discriminant of a binomial? What is 17 square meters in feet?