In a given year, about 1.52*10^10 pieces of first class mail are delivered in the U.S. If each piece of mail carries a stamp costing $0.55, what is the total cost in dollars to deliver all the pieces? Write the answer in scientific notation, expressed to the exact decimal place.
The total cost to deliver all the pieces of first class mail is calculated by multiplying the number of pieces of mail by the cost of a stamp:
Total cost = (1.52*10^10) * 0.55
Total cost = 8.36*10^9 dollars
Therefore, the total cost to deliver all the pieces of first class mail in the U.S. is $8.36*10^9.