Since there are 4.5*10^2 grams of trash per day per person, we multiply that by 3.2*10^6 for everyone in the US and then multiply that by 365 to get how much in a year, which is 525600000000 or 5.256*10^11 (I think it's 11)
(4.5 × 10² ) (3.2×10^6) = Decimal notation 450 * 3200000= 1440000000 Where Scientific Notation is (4.5 × 10² ) (3.2×10^6) = 13.5+ (1/5* 4.5) =13.5+ 0.9= 14.4 as this is 100th we -1 to the powers after adding the as both inside brackets none outside= 2+ 6 = ^8 + ^1 = ^7 = 1.44*10^9 scientific notation
