An average person in the united states throws away 4.5 × 10² g of trash per day. in 2013, there were about 3.2×1063.2×106 people in the u. s.

about how many grams of trash was thrown away in the united states in 2013

Well, Since every 1 person throws away 4.5 × 10² g trash each day (365 days in each year), You would times 3.2×1063.2×106  by the 4.5 × 10² g to get how much trash was thrown away each day and then times that by 365 to figure how much trash was thrown away the entire year

Main idea on left, details on right